| 单词 | mica |
| 例句 | That Monday, the sixteenth November, 1959, was still another fine specimen of pheasant weather on the high wheat plains of western Kansas—a day gloriously bright-skied, as glittery as mica. In Cold Blood 1966-01-01T00:00:00Z As in the mica mine in North Carolina, long wooden planks and struts buttressed the walls and ceiling. The Underground Railroad: A Novel 2016-08-02T00:00:00Z Several of the homes on the way to the quarries were built from huge blocks of granite, containing quartz, feldspar, and mica, all visible to the naked eye, as Fred once showed me. The Line Tender 2019-04-16T00:00:00Z My grandfather had died a decade earlier in 1936—he had been murdered following a dispute over mica mines—leaving my grandmother to raise five young boys. The Gene 2016-06-02T00:00:00Z A note on their doorstep had directed Martin to the mica mine, he told her. The Underground Railroad: A Novel 2016-08-02T00:00:00Z Shell beads from Florida, obsidian from the Rocky Mountains, and mica from Tennessee found their way to the Northeast. 1491 2005-10-10T00:00:00Z The mica mine was only a few miles away—even if Martin had the grit to run with Cora, they would not make it to the next county without an examination. The Underground Railroad: A Novel 2016-08-02T00:00:00Z In that glacier of words grinding toward the twentieth century, Prendergast’s card was a single fragment of mica glinting with lunacy, pleading to be picked up and pocketed. The Devil in the White City 2003-02-11T00:00:00Z A tall hat of fetal lamb balanced like a wasp’s nest on Grigori’s head, shadowing eyes as hard and gray as mica, with the same shallow gleam. The City Beautiful 2021-10-05T00:00:00Z He’s a jagged rock worn smooth by years of water currents, and if the light is right, hidden bits of goodness glint like mica. The Queen of Water 1996-01-01T00:00:00Z When he took his Bible in hand and stood up in front of God and all Malaga Island to preach, he’d be straight up, his eyes opened wide and glinting like mica. Lizzie Bright and the Buckminster Boy 2004-05-24T00:00:00Z I climbed up, slipping and floundering, lost the echoed light and found it again, a good little new-split stone with a piece of mica in it—not a fortune but a good thing to have. Travels with Charley in Search of America 1962-01-01T00:00:00Z As he knew, these were deflected somewhat by magnetic fields but, curiously, even more on their passage through solid matter—even through a thin film such as mica. Big Science 2015-07-07T00:00:00Z We discovered large sheets of mica that you could pound into powder and then rub all over your body so you’d shimmer under the Nevada sun as if you were coated with diamonds. The Glass Castle 2005-03-01T00:00:00Z Look, Auntie, look, her niece would cry, and when she opened her hand there would be a shiny flake of mica to see, or maybe a bisected worm, all squiggly confusion. Typical American 1991-01-01T00:00:00Z Above hangs a chandelier made from thin sheets of mica. The Cruel Prince 2018-01-02T00:00:00Z The dancers’ outfits ended up stitched with tinsel and mica, trimmed in lace and fur and puffed out around metal and wicker frames. Antiques: A Ballet?s Costumes Take Center Stage 2010-09-23T21:11:00Z For now, however, the focus is on the new wallpapers, which are all made from nonwoven and metallic mica papers. London's 17 Patterns launches its debut collection of wallpapers 2015-08-05T04:00:00Z It’s the biography of a few notable stones, including a 20-ton chunk of pockmarked meteorite, mica prepared in Nazi concentration camps, the layer of marble running under Manhattan. Grief and Geology Both Take Time in ‘The Book of Unconformities’ 2020-09-22T04:00:00Z These are formulated with minute flakes of materials that don’t rust, such as mica or stainless steel. How to keep wrought-iron stairs from rusting 2021-05-15T04:00:00Z Some of the canvases include pink Bermuda sand, diamonds, blood and his father’s cremated remains, while others feature glittering mica and staples that puncture the canvas, surrounding the figures like jagged halos. Museum & Gallery Listings for Aug. 21-27 2015-08-20T04:00:00Z In her book "Crystal Palaces: Garden Conservatories of the United States," Anne S. Cunningham reveals that the first greenhouses were built in ancient Rome using semitransparent mica as glazing. The story of the Volunteer Park Conservatory, turning 100 this year 2012-08-08T23:27:05Z It was a good way to test the waters before buying a luxury product with mica, such as Perricone MD’s No Foundation Foundation, a light-diffusing makeup which is $50 an ounce at Sephora.com. Skin Deep: Manhattan?s Target Store Brings Cosmetic Delights 2010-08-04T00:54:00Z In Casey’s pictures, earthy figures fuse with each other and with nature, while accents of glitter, silver leaf and mica flakes provide an otherworldly sheen. Review | In the galleries: A focus on the intersection of art and movement 2021-02-24T05:00:00Z The epoxy treatment consists of a clear epoxy layer that the installers sprinkle with fine mica particles coated with pigment. How to give a concrete floor a cost-effective update As they soar over a landscape “more mica than sand,” they learn that when dragon-hunting on Vyalou, one momentarily fuses consciousness with the creature in flight. In Praise of Samuel R. Delany 2019-08-08T04:00:00Z The brittle mica — sometimes beige, sometimes brownish — suggests skin tones without concealing its mineral nature. At Greg Kucera, catch 2 Seattle artists at the top of their game 2016-11-22T05:00:00Z Other works include glittering mica and staples that puncture the canvas, surrounding the figures like jagged halos. Review: Cy Gavin Employs Unusual Canvas Ingredients in ‘Overture’ 2015-08-13T04:00:00Z If you looked at the sidewalks closely, you could see flecks of quartz and mica, and sometimes two names inside a heart, and if you paid attention you often found a penny. A Childhood in the Pro-Life Movement 2017-02-11T05:00:00Z Another beige creation was trimmed with natural mica minerals. 9 designers and models vie for spot on Oscar stage 2011-02-16T01:12:14Z But in it, like mica in slate, is the glint of redemption, flashing just long enough to allow a man to keep a bead on whatever goodness might dwell in him. Sound of the White Buffalo can be found between tenderness and a growl 2015-06-26T04:00:00Z The show’s name stems from his “Manus” series: six stylized mica outlines of hands in action, with which Calderon evokes a startling range of mindsets and moods. At Greg Kucera, catch 2 Seattle artists at the top of their game 2016-11-22T05:00:00Z Invented in Cincinnati in 1913 by engineers Daniel O'Conor and Herbert Faber, Formica laminate was designed to be an electrical insulator, to serve as a replacement for the silicate mineral mica – hence "for mica". Formica turns 100 2013-01-17T10:18:40Z The mica in metallic eye shadows, she said, creates a texture that’s easy to apply. Time to Break Out the Lipstick 2020-12-16T05:00:00Z He commissioned burgundy walls that twinkle with mica dust and a ceiling dotted with floating cloudlike light sculptures. This show house looks like a million bucks — make that $35 million 2015-05-14T04:00:00Z It runs through us like mica through granite. It’s Us Against a Particle of Dust 2018-03-09T05:00:00Z It’s the biography of a few notable stones, including a 20-ton chunk of pockmarked meteorite, mica prepared in Nazi concentration camps and the layer of marble running under Manhattan. 10 New Books We Recommend This Week 2020-10-01T04:00:00Z It is the only original mica window that remains here. Searching for the Ancestral Puebloans 2019-11-06T05:00:00Z Built from rammed earth and powered by geothermal and solar energy, it contains two basement “cave” installations made from brilliantly colored butterfly wings sealed in mica, which glittered like dragon scales in the half-light. In Boulder, Where Inner Peace Meets Outer Beauty 2016-08-31T04:00:00Z The first, in 1967, had a concrete or cement Venus purchased at a garden center covered with mica to create a glittery surface. Vandals in Naples destroy seminal artwork by 90-year-old Italian artist Michelangelo Pistoletto 2023-07-12T04:00:00Z However, when impermeable mica flakes were inserted between the tip and the cut base, the seedling did not bend. Biology for AP Courses 2022-06-09T00:00:00Z On the other hand, most clay minerals are only stable up to about 150° or 200°C; above that, they transform into micas. Physical Geology 2015-01-01T00:00:00Z To give an example of how large these crystals can get, transparent cleavage sheets of pegmatitic muscovite mica were used as windows during the Middle Ages. An Introduction to Geology 2017-01-01T00:00:00Z Manguso captures both the repelling and beautiful aspects of girls’ bodies: oily hair and fingernails “peeling off in layers like mica” — what’s visible and what shimmers right underneath the surface. Review | ‘Very Cold People’ relays the realities of girlhood with stunning clarity 2022-02-05T05:00:00Z Others used plaster casts of the that statue, and one was made out of Greek marble containing mica, according to the Tate Gallery, which owns one of the pieces. Vandals in Naples destroy seminal artwork by 90-year-old Italian artist Michelangelo Pistoletto 2023-07-12T04:00:00Z When the mica plate was inserted on the illuminated side, the plant did bend towards the light. Biology for AP Courses 2022-06-09T00:00:00Z At 15 km to 20 km, larger micas form to produce schist, and at 20 km to 25 km amphibole, feldspar, and quartz form to produce gneiss. Physical Geology 2015-01-01T00:00:00Z This gives mica its characteristic property of easily cleaving into sheets. An Introduction to Geology 2017-01-01T00:00:00Z A man from County Donegal who had to demolish his family home because of the mica scandal has said he and his family have shed tears over the mental and financial stress. Donegal: Mica families to submit redress proposals to minister 2021-09-17T04:00:00Z The hardpan streets had cuttingly sharp edges, but they also glinted with mica, which as a kid struck me like treasure — if you could dig it out, wouldn’t it be silver dust? Perspective | Beneath 9/11’s terrible smoke, a flash of gold 2021-09-11T04:00:00Z Many geologists consider it to be the most beautiful rock in all of New England because of its massive feldspar crystals and mica inclusions. The unique challenges of building atop solid rock 2021-07-30T04:00:00Z These include minerals such as quartz, feldspar, mica, amphibole, pyroxene, olivine, and a great variety of clay minerals. Physical Geology 2015-01-01T00:00:00Z Two frequently found micas are dark-colored biotite, frequently found in granite, and light-colored muscovite, found in the metamorphic rock called schist. An Introduction to Geology 2017-01-01T00:00:00Z Thousands of homes in the Republic of Ireland have crumbled because of bricks made of pyrite and mica, which absorbs water, causing walls to crack. Donegal: Mica families to submit redress proposals to minister 2021-09-17T04:00:00Z Generations of Spruce Pine miners tossed the quartz aside in favor of the feldspar and mica. The special ingredient of those brilliant white sand traps at the Masters 2020-11-11T05:00:00Z For example, mica flakes because it is weaker in one direction than in the perpendicular directions. From rocks to icebergs, the natural world tends to break into cubes 2020-07-27T04:00:00Z In mica structures, the silica tetrahedra are arranged in continuous sheets, where each tetrahedron shares three oxygen anions with adjacent tetrahedra. Physical Geology 2015-01-01T00:00:00Z Biotite mica has more iron and magnesium and is considered a ferromagnesian silicate mineral. An Introduction to Geology 2017-01-01T00:00:00Z After getting the brick tested it was confirmed that Mr Breslin's house was among thousands of others built with mica. Donegal: Mica families to submit redress proposals to minister 2021-09-17T04:00:00Z In “Waterlog,” he wrote of “marvelling at the brightness of everything” in the Scillies: the white sand, the rocks glittering gold with quartz and mica. The Subversive Joy of Cold-Water Swimming 2020-01-20T05:00:00Z The report said children as young as 4 from poor families in Madagascar are mining for mica, a type of mineral used in cosmetics, electronics and other products. UAW regional office enmeshed in embezzlement case is disbanded 2019-12-06T05:00:00Z In muscovite mica, the only cations present are aluminum and potassium; hence it is a non-ferromagnesian silicate mineral. Physical Geology 2015-01-01T00:00:00Z Certain minerals, most notably the mica group, are mostly thin and planar by default. An Introduction to Geology 2017-01-01T00:00:00Z He would go fishing with his father at South Padre Island, using his passport and la mica, a border-crossing card needed to make the journey at the time. L.A. archbishop, an immigrant from Mexico, becomes first Latino to lead U.S. bishops 2019-11-12T05:00:00Z The company also began replacing talc with a cosmetic-grade mica in all its products last year. What's in your kids' makeup? Asbestos recalls prompt regulation questions 2019-06-29T04:00:00Z “Had it not been for a band of impenetrable mica schist lower in the mountain, and time restraints, Borglum and his crew of carvers would have hewn down to the presidents’ waists,” notes Smithsonian Magazine. America's amazing mega-monuments that were never built 2019-03-06T05:00:00Z Commonly even very felsic rocks will not have biotite or muscovite because they may not have enough aluminum or enough hydrogen to make the OH complexes that are necessary for mica minerals. Physical Geology 2015-01-01T00:00:00Z If they lie on a plane with mica, but with no common or preferred direction, this is foliation. An Introduction to Geology 2017-01-01T00:00:00Z Evelyn was scarred by a piece of shrapnel that struck her right calf during a mortar attack at one camp; at another, she cut mica in a factory. Evelyn Y. Davis, activist shareholder and ‘queen of the corporate jungle,’ dies at 89 2018-11-05T05:00:00Z The authors found that the rare-earth-element signal associated with the presence of seawater seems to be mainly concentrated in mica minerals in the rock, but is also present in the carbonate areas. Proposed early signs of life not set in stone 2018-10-16T04:00:00Z The DOI has, for instance, assisted operations by the now-defunct Bethlehem Steel in Cuba, and provided technical aid for mica mining in Brazil. The mineral frontier: inside the US agency chasing global resources 2018-09-30T04:00:00Z This effect is especially strong if the new minerals are platy like mica or elongated like amphibole. Physical Geology 2015-01-01T00:00:00Z Slate is a fine-grained metamorphic rock that exhibits a foliation called slaty cleavage that is the flat orientation of the small platy crystals of mica and chlorite forming perpendicular to the direction of stress. An Introduction to Geology 2017-01-01T00:00:00Z But Collar subsequently showed3 that radioactivity from uranium in the minerals would create tracks in the mica that would be impossible to distinguish from those created by WIMPs. Hunt for dark matter turns to ancient minerals 2018-07-08T04:00:00Z DeCavitch took her students into Bangs Canyon to see the mica mine and found the defaced escarpment “as we were stepping over broken beer bottles and charcoal” from fires. Western Colorado rock art vandals begging for attention 2018-01-20T05:00:00Z But the abundant ground ochre and use of mica indicates that artistic expression took place in the region much earlier. Buried Tools and Pigments Tell a New History of Humans in Australia for 65,000 Years 2017-07-19T04:00:00Z Slate, for example, is characterized by aligned flakes of mica that are too small to see. Physical Geology 2015-01-01T00:00:00Z The team found pieces of reflective art minerals such as mica wrapped around ground ochre, along with a slab covered in red ochre that was mixed with mica. Rock find 'rewrites' Australian human history - BBC News 2017-07-19T04:00:00Z “This issue is not limited to mica, but instead affects any mineral containing the ubiquitous natural abundance of uranium and thorium,” he says. Hunt for dark matter turns to ancient minerals 2018-07-08T04:00:00Z The earliest people at the site also used "huge quantities of ochre" and are the first humans shown to have used reflective mica to decorate themselves or rock walls. A find in Australia hints at very early human exit from Africa 2017-07-19T04:00:00Z The culture is known for sprawling ceremonial earthworks and for objects made of non-local materials such as mica. Beads made from meteorite reveal prehistoric culture's reach 2017-05-14T04:00:00Z As already noted, slate is formed from the low-grade metamorphism of shale, and has microscopic clay and mica crystals that have grown perpendicular to the stress. Physical Geology 2015-01-01T00:00:00Z It’s a mixture of Portland cement, mica and quartz that is supposed to shield the tunnel’s concrete walls from exceeding 716 degrees, to meet national codes. Inside the Highway 99 tunnel: Bertha’s done digging, but the roadway work rolls on 2017-04-15T04:00:00Z The likes of feldspar, quartz and mica will be known by most people. Humans help cook up mineral bounty - BBC News 2017-03-01T05:00:00Z You control the measure of mica flakes that create the subtle sparkle. Beyond Wallpaper: 3-D Wall Treatments That Transform a Room 2016-08-11T04:00:00Z The mine was discovered in 1803 by Sam Ruggles, who reportedly kept it secret for years and used to transport the mica, a layered mineral, in the middle of the night to Portsmouth. 213-year-old mica mine, now a tourist attraction, for sale 2016-06-11T04:00:00Z Phyllite is similar to slate, but has typically been heated to a higher temperature; the micas have grown larger and are visible as a sheen on the surface. Physical Geology 2015-01-01T00:00:00Z His answer: makeup, specifically, the pigmented mica powder with which cosmetics companies formulate eye shadow. Eye Shadow Doubles as an Insider Décor Trick 2016-04-14T04:00:00Z The precision, as with Moore, is comic, fastidious: a mountain lion combines “undulation / and the gait of a worm”; a pile of dust reveals “the iridescence / in soil, / the mica and / infinitesimal / crystal.” The Poetry of Ordinary Terror 2016-03-21T04:00:00Z Think of feldspar, quartz and mica - these are the ubiquitous species that everyone knows. Earth's rarest minerals catalogued - BBC News 2016-02-13T05:00:00Z Ruggles Mine, which produced mica and other minerals for 160 years before being turned into a New England tourist attraction in 1963, is up for sale. 213-year-old mica mine, now a tourist attraction, for sale 2016-06-11T04:00:00Z In the formation of schist, the temperature has been hot enough so that individual mica crystals are visible, and other mineral crystals, such as quartz, feldspar, or garnet may also be visible. Physical Geology 2015-01-01T00:00:00Z For lots of drama in small doses, focus on a powder room; electric light in the small space will maximize the refraction of the mica, and the walls will veritably glisten. Eye Shadow Doubles as an Insider Décor Trick 2016-04-14T04:00:00Z It's made from thin, translucent slices of the mineral mica, often used in lampshades during the American Arts and Crafts period of the early 20th century, with a shape inspired by a 1970s Italian design. Hot home ideas and resources for 2016 2016-01-23T05:00:00Z The formulation, called High Performance Anti-Aging Treatment Foundation, rejects bothersome elements like mica and talc in favor of beneficial antioxidants and other ingredients that help fade age spots and soften lines. Make-up That’s Good For You; and Bags That Work Round-the-Clock 2015-11-12T05:00:00Z Brown and gray, with flecks of mica sparkling on their coarsely chiseled faces, the long stones look almost runic. Park’s Stone Wall Is a Vestige of Manhattan’s Rail History 2015-08-26T04:00:00Z Most gneiss has little or no mica because it forms at temperatures higher than those under which micas are stable. Physical Geology 2015-01-01T00:00:00Z Kusher chose three different minerals – mica, graphite and gypsum – and mixed each individually with a clear, acrylic sealant to apply to the roof shingles. Intel Science and Engineering Fair Finalists Focus on Environmental, Health, Safety Innovations 2015-05-11T04:00:00Z "We found gold, silver, Hawaiian poi pounders, gemstones, a boat whistle, knives, forks, mica, things from all over the world, high- and low-end European stuff. Every bit of it is royal treasure," Rogers said. Artifacts lost in shipwreck 191 years ago returned to Hawaii 2015-04-09T04:00:00Z In the Upper Class cabin, the trademark Virgin bar positively glows because of special mica added to the textured Corian surface. Flying In Luxury On The New Virgin Atlantic 787 Dreamliner 2015-03-13T04:00:00Z Walls are clad in paper parchments, mica and painted bamboo; while chairs are wrapped in woven and plush knitted fabrics. Graff Opens Hong Kong Flagship Store 2015-02-08T05:00:00Z One derived from shale may be a muscovite-biotite schist, or just a mica schist, or if there are garnets present it might be mica-garnet schist. Physical Geology 2015-01-01T00:00:00Z Among those who celebrated on Friday was Mohammad Manan Ansari, who began working at a mica mine at 6, digging ore that would sell for 5 to 20 cents a pound. Kailash Satyarthi’s Nobel Peace Prize Caps Decades of Fighting Child Slavery in India 2014-10-10T04:00:00Z For example, manufacturers often use glittery, microscopic flakes of mica, a naturally occurring mineral formation, to add shine to lip gloss. Well: Is There Danger Lurking in Your Lipstick? 2013-08-16T14:57:21Z Even the plaza paving is flecked with mica so it glitters in the early evening sun. Remaking Sodo: Hansen, teams, city look at L.A. Live 2013-04-22T03:10:42Z Gorgeous "Cortical Landscape," with gold, dye and mica, by artist Greg Dunn, greets visitors to entry of Max Planck Florida Institute for Neuroscience. More Science in the Sunshine State 2012-12-07T18:45:05.240Z On the other hand, any clay present in the original sandstone is likely to be converted to mica during metamorphism, and any such mica is likely to align with the directional pressure. Physical Geology 2015-01-01T00:00:00Z The bedrock below Second Avenue and for much of the rest of Manhattan is schist — a hard, gray black rock shot through with sheets of glittery mica. Tunneling Below Second Avenue 2012-08-01T15:57:16Z India is the largest producer of sheet mica, the third largest producer of iron ore and the fifth largest producer of bauxite in the world. Mining industry 'out of control' 2012-06-14T11:05:24Z Clockwise from top: mica schist from Mingus Mountain, copper ore from the United Verde mine, a bit of pure copper from an Arizona mine, and slag from mining operations at United Verde. Oceans of Ore: How an Undersea Caldera Eruption Created Jerome, Arizona 2012-06-04T11:15:12.460Z They use large hammers, sickles and knives, even their fingers, to dig pits, and then break and finesse the chunks of mica. India Ink: A Woman Leader for the Isolated Jungle Village of Jharki Bisalpur 2012-05-15T12:17:20Z The quartz crystals show no alignment, but the micas are all aligned, indicating that there was directional pressure during regional metamorphism of this rock. Physical Geology 2015-01-01T00:00:00Z The earliest of these were made by coating mica flakes with multilayers of metal oxides. Paintings Made with Iridescent Nanopaints Change Color on the Spot 2012-05-13T14:45:00.220Z You’ll find sapphires in some volcanic fields, and in metamorphic rocks like gneiss, mica schist and sometimes marble. The Real Heart of the Ocean 2012-04-14T14:45:05.383Z Everywhere were little grains of felspar, mica, or quartz, which caught the reflection of the light. Treasure of Kings Being the Story of the Discovery of the \\"Big Fish,\\" or the Quest of the Greater Treasure of the Incas of Peru. 2012-04-09T02:00:30.007Z The forest was once mined openly for mica, and private mining companies looked after their employees, many of whom were locals. India Ink: A Woman Leader for the Isolated Jungle Village of Jharki Bisalpur 2012-05-15T12:17:20Z The small, thin, brightly coloured crystals are mica. Physical Geology 2015-01-01T00:00:00Z But because the mica surfaces were not perfectly smooth and the grain sizes varied, the precise colors and intensities of the particles varied. Paintings Made with Iridescent Nanopaints Change Color on the Spot 2012-05-13T14:45:00.220Z Hiddenite was originally found as loose crystals in the soil, but was afterwards worked in a veinstone, where it occurred in association with beryl, quartz, garnet, mica, rutile, &c. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 4 "Hero" to "Hindu Chronology" 2012-04-04T02:00:56.447Z It consists of a tin box with mica or glass slides, e, to allow the larva to be constantly in sight. Directions for Collecting and Preserving Insects 2012-03-28T02:00:31.483Z Jharkhand contributes almost fifty per cent of India’s mica, helping the country maintain its position as one of the world’s chief exporters of the mineral. India Ink: A Woman Leader for the Isolated Jungle Village of Jharki Bisalpur 2012-05-15T12:17:20Z The mica crystals are consistently parallel to one another. Physical Geology 2015-01-01T00:00:00Z M is a sheet of thin mica wound in several layers around the stem s, and a is the aluminum tube. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z A variety of translucent quartz, spangled throughout with scales of yellow mica. ÷ feldspar, a variety of oligoclase with internal firelike reflections due to the presence of minute crystals, probably of hematite; sunstone. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z It turned evenly, slowly, noiselessly, and, as it turned, the light from the lamp caused the quartz and mica and felspar in the granite to glisten like a thousand fire-flies on a summer's evening. Across the Cameroons A Story of War and Adventure 2012-03-19T02:00:28.667Z In some cases they are rich in graphite or carbonaceous matters; in others they are full of brown mica; some spots consist of rather coarser grains of quartz than occur in the matrix. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z Examples of minerals are feldspar, quartz, mica, halite, calcite, and amphibole. Physical Geology 2015-01-01T00:00:00Z It was likewise possible to maintain a filament or button mounted in a tube at bright incandescence, and, in one experiment, a mica vane was spun by the incandescence of a platinum wire. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z The North Carolina garnets and amethysts could be sold; and specimens of the mica and gold and the native pink marble could be exhibited. Horace Chase 2012-03-08T03:00:09.693Z Moreover, the aisles were of grey limestone; but the rock behind the altar was of red granite, in which the quartz and mica crystals glittered in the flickering light of the lamp. Across the Cameroons A Story of War and Adventure 2012-03-19T02:00:28.667Z Slates, shales and clays yield biotite hornfelses in which the most conspicuous mineral is black mica, in small scales which under the microscope are transparent and have a dark reddish-brown colour and strong dichroism. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z Its summit was composed of white pipe-clay, beneath which was found a large quantity of mica in sheets. Ophiolatreia An Account of the Rites and Mysteries Connected with the Origin, Rise, and Development of Serpent Worship in Various Parts of the World 2012-03-01T03:00:28.303Z Among many insulating powders I have found that mica powder is the best to employ. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z Agate, carnelian, jasper, lead, copper, gold, silver, terra-cotta, mica, pearl, lignite, coal, bone, shells, chalcedony, wampumpeag, etc. Money: Speech of Hon. John P. Jones, of Nevada, On the Free Coinage of Silver; in the United States Senate, May 12 and 13, 1890 2012-02-29T03:00:21.727Z Overhead the precipitous cliffs caught the sun's rays on countless glittering points, the mica with which they are so plentifully bespangled dazzling the eye with its brilliancy. Nooks and Corners of the New England Coast 2012-02-22T03:00:25.113Z Hence, we should not speak of a slate, sulphur, mica, clay or phosphate mine. The Business of Mining A brief non-technical exposition of the principles involved in the profitable operation of mines 2012-02-18T03:00:17.387Z Finely-powdered quartz and yellow mica are met with, denoting the deposit of disintegrated granite from the interior. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 9 "Dagupan" to "David" 2012-02-11T03:03:39.807Z In this form the discharge rods d d1 pass through perforations in a wooden box B, which is thickly coated with mica on the inside, as indicated by the heavy lines. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z The circular polarization of crystals may be imitated by a pile of mica plates, each plate being turned through a small angle on the one below, thus giving a spiral arrangement to the pile. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z “About as interesting as Laddie’s collection of one piece of genuine mica,” replied Betta. The Girl Scouts at Rocky Ledge Nora's Real Vacation 2012-01-20T03:00:14.427Z Granite, gran′it, n. an igneous crystalline rock, composed of grains of quartz, feldspar, and mica, and of a whitish, grayish, or reddish colour.—adj. Chambers's Twentieth Century Dictionary (part 2 of 4: E-M) 2012-01-11T03:00:23.770Z It was used in windows, though by no means exclusively, mica, alabaster and shells having been also employed. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 1 "Gichtel, Johann" to "Glory" 2012-01-11T03:00:20.463Z The inside of ring A is coated with mica in order to increase the induction and also to allow higher potentials to be used. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z F� de Nuevo-Mexico, the Si�rra de San Francisco, west of the Rocky Mountains and Pueblo Zuni, consist of hornblende, oligoclase, and brown mica. Narrative of the Circumnavigation of the Globe by the Austrian Frigate Novara, Volume I (Commodore B. Von Wullerstorf-Urbair,) Undertaken by Order of the Imperial Government in the Years 1857, 1858, & 1859, Under the Immediate Auspices of His I. and R. Highness the Archduke Ferdinand Maximilian, Commander-In-Chief of the Austrian Navy. 2012-01-02T03:00:25.873Z The mica should be as clear as you can get it. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z Felspar, quartz, hornblende, and mica are the four constituents of granite. Harper's New Monthly Magazine Vol. IV, No. 19, Dec 1851 2011-12-25T03:00:11.297Z This large snake, locally called mica, seems to be equally at home on the ground and in low trees and bushes. Amphibians and Reptiles of the Rainforests of Southern El Peten, Guatemala 2011-12-25T03:00:10.957Z The experiment is best performed with dense glass or mica. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z It consists of a series of copper bars or segments arranged side by side forming a cylinder, and insulated from each other by sheets of mica or other insulating material.172 Figs. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z A good way to mount such objects as fine seeds is to put them in the hole loosely and then cover them with a piece of mica such as will be spoken of presently. Through a Microscope Something of the Science Together with many Curious Observations Indoor and Out and Directions for a Home-made Microscope. 2011-12-29T03:00:20.733Z But gold is extremely heavy; twelve or nineteen times heavier than that same bulk of water; mica is very light: sand itself being but three times heavier than water. Harper's New Monthly Magazine Vol. IV, No. 19, Dec 1851 2011-12-25T03:00:11.297Z Flecks of white mica flash in the sun. City Room: Manhattan Forest, Now Barren, Is Far From Lifeless 2011-12-23T21:20:26Z The perforations are provided with mica tubes m m1 of some thickness, which are preferably not in contact with the rods d d1. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z The field coils are former wound, the insulation being reinforced with mica. Hawkins Electrical Guide, Number One Questions, Answers, & Illustrations, A Progressive Course of Study for Engineers, Electricians, Students and Those Desiring to acquire a Working Knowledge of Electricity and its Applications 2011-12-24T03:07:54.823Z The minerals include quartz and gold, silver and galenas, copper, coal and lignite, manganese, asbestos, graphite, kaolin, opals, slate, alum, marble, silver, mica, iron, sulphur, lead. Guatemala, the country of the future 2011-12-12T03:00:29.630Z If the scales be gold they will sink first, and quickly, to the bottom; if they be mica, they will take their time, and be among the last to sink. Harper's New Monthly Magazine Vol. IV, No. 19, Dec 1851 2011-12-25T03:00:11.297Z This is observed through the mica spy hole in the door and the one above tells when the flame is reaching its maximum. Pottery, for Artists Craftsmen & Teachers 2011-12-10T03:00:15.097Z The support of the button should be very thin and screened by an aluminum and mica sheet, as I have described on another occasion. The inventions, researches and writings of Nikola Tesla With special reference to his work in polyphase currents and high potential lighting 2012-03-28T02:00:22.660Z They must have contained fluorine, boron and probably also lithium, for topaz, mica and tourmaline, the new minerals of the granite, contain these elements. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z The tertiary formation is followed by an azoic formation of gneiss, mica slate, and phylada with large intrusions of granite. Guatemala, the country of the future 2011-12-12T03:00:29.630Z Scales of mica, to the eye only, very much resemble gold. Harper's New Monthly Magazine Vol. IV, No. 19, Dec 1851 2011-12-25T03:00:11.297Z They are usually fitted with two large burners, with air mixers, and a handy mica spy hole. Pottery, for Artists Craftsmen & Teachers 2011-12-10T03:00:15.097Z As mica washers of different sizes may be used, and accurate machining, such as is necessary with conical clamping surfaces, is not required, the plug can be produced economically. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z A similar type of alteration, the development of white mica, quartz and tourmaline, is found sometimes in sedimentary rocks around granite masses. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z The fibres of lichens that grow on granite actually sink into it by dissolving the mica and forcing their way between the other kinds of particles in the rock that they can't eat. The Adventures of a Grain of Dust 2011-11-22T03:00:12.257Z All of them painted hideously, the women adding a streak of vermilion down the middle division of the hair, and on high occasions the glittering mica sand, spoken of by Jewitt, was called into requisition. The Adventures of John Jewitt Only Survivor of the Crew of the Ship Boston During a Captivity of Nearly Three Years Among the Indians of Nootka Sound in Vancouver Island 2011-11-15T03:00:19.650Z Many granites show pearly scales of white mica; others contain dark green or black hornblende in small prisms. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The lower end of the shell is provided with a baffle plate O, which tends to keep the oil away from the mica. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The commonest accessory minerals are tourmaline, topaz, apatite, fluorspar and iron oxides; a little felspar more or less altered may also be present and a brown mica which is biotite or lithionite. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z The films of mica may be continuous and are usually not flat, but irregularly curved. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 2 "Gloss" to "Gordon, Charles George" 2011-10-31T02:00:28.703Z Over it all were sown burnished fleckings of myriads of mica particles, like white-hot motes from the face of the sun itself. Saul of Tarsus A Tale of the Early Christians 2011-10-28T02:00:22.437Z The felspar is pearly, white or pink, with smooth cleaved surfaces; the quartz is usually transparent, glassy with rough irregular fractures; the micas appear as shining black or white flakes. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z In building up the core a small section of washers, I, is built up before the mica insulating tube D is placed on. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The white mica forms mostly large plates with imperfect crystalline outlines. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z This stream rushes over a precipitous mass of granite, gneiss, and mica slate rocks, precipitating itself by a fall of twenty-five feet into a rocky basin below. Forest Life and Forest Trees: comprising winter camp-life among the loggers, and wild-wood adventure. with Descriptions of lumbering operations on the various rivers of Maine and New Brunswick 2011-10-11T02:01:03.847Z The actinolite slate is dark green, and formed by an almost insensible gradation from the mica slate. In the Arctic Seas A Narrative of the Discovery of the Fate of Sir John Franklin and his Companions 2011-10-10T02:00:18.377Z These minerals are often clouded by a deposit of fine mica and kaolin, due to weathering. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The type shown at A employs a molded porcelain as an insulator, while that depicted at B uses a bushing of mica. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z At their outer edges they pass gradually into the granite, for they contain felspar crystals more or less completely altered into aggregates of white mica and quartz. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z The rocky ground of which it was composed was covered with loose and crumbling masses of mica slate, and was not worth above £3 a year altogether. Forest Life and Forest Trees: comprising winter camp-life among the loggers, and wild-wood adventure. with Descriptions of lumbering operations on the various rivers of Maine and New Brunswick 2011-10-11T02:01:03.847Z This mica schist passes into a white gneiss, composed of quartz, white felspar, and black mica, penetrated by veins, coarsely crystallised, of the same minerals. In the Arctic Seas A Narrative of the Discovery of the Fate of Sir John Franklin and his Companions 2011-10-10T02:00:18.377Z The micas, brown and white, are often in parallel growth. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The core C is built up of mica washers, and has square shoulders. Aviation Engines Design?Construction?Operation and Repair 2011-12-04T03:00:04.777Z The latter is a pneumatolytic product consisting of quartz and tourmaline; it often contains white mica and thus passes by all stages into greisen. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z Shales bearing petroleum, iron, limestone, soda, sulphur, mica, copper, lead, silver and gold, are all there for the taking. Ocean to Ocean on Horseback Being the Story of a Tour in the Saddle from the Atlantic to the Pacific; with Especial Reference to the Early History and Devel 2011-10-06T02:00:32.743Z Blackish grey, fine grained, gneissose granite, composed of quartz, white felspar, and large quantities of fine grains and flakes of hornblende, passing into black mica. In the Arctic Seas A Narrative of the Discovery of the Fate of Sir John Franklin and his Companions 2011-10-10T02:00:18.377Z Zircon, apatite and iron oxides are the first; their crystals are small, very perfect and nearly free from enclosures; they are followed by hornblende and biotite; if muscovite is present it succeeds the brown mica. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z Their geological formation is granite, with gneiss and mica slate, with clay slate, hornblende and primitive limestone overlying. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 8 "Germany" to "Gibson, William" 2011-10-05T02:00:17.763Z Once more she quailed before the blue mica of his eye. A Crooked Mile 2011-10-03T02:00:26.870Z Both are composed principally of flakes of mica, which are, however, larger and more abundant in No. 6 than in No. 5. A Catalogue of Sculpture in the Department of Greek and Roman Antiquities, British Museum, Volume I (of 2) 2011-09-30T02:00:18.107Z The mica slate is composed of large plates of an intimate mixture of black and white mica, the chemical examination of which will doubtless prove of interest. In the Arctic Seas A Narrative of the Discovery of the Fate of Sir John Franklin and his Companions 2011-10-10T02:00:18.377Z Hydrofluoric and boric emanations exert a profound influence on granitic rocks; their felspar is resolved into aggregates of kaolin, muscovite and quartz; tourmaline appears, largely replacing the brown mica; topaz also is not uncommon. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z The dead were buried in the Nile, or else they were kept in the houses under a mica slab of human form. The Tour A Story of Ancient Egypt 2011-09-23T02:00:23.040Z Every day tens of thousands of Indian children mine mica, which is the little sparkles in the makeup.” Slavery, a Personal Question Online 2011-09-22T00:50:08Z "Very pretty specimens of white, rose, and smoky quartz, black and white mica, gneiss, hornblende, and a few others, that I collected on that very high hill, west of here." Mind Amongst the Spindles 2011-09-20T02:00:13.677Z These plates of mica are separated by bands of pure white felspar. In the Arctic Seas A Narrative of the Discovery of the Fate of Sir John Franklin and his Companions 2011-10-10T02:00:18.377Z Of these, among the earliest to present themselves are usually the micas, that impart their characteristic silvery sheen to the surfaces of the folia along which they spread. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z The moving part of the radiometer is a small horizontal wheel, to the ends of whose arms are fastened vertical vanes, usually of mica, and blackened on one side. Scientific Culture, and Other Essays Second Edition; with Additions 2011-09-17T02:00:31.747Z Then a piece of mica, or a little pool, or even a highly polished leaf will flash like a heliograph. The Second Jungle Book 2011-09-10T02:00:30.870Z But the rock below the South Fork Mountain forest was made of nitrogen-rich mica schist, derived from marine sediments from the early Cretaceous Period. Trees Pull Nitrogen from Rocks and Microbes 2011-09-07T17:15:00.260Z Minerals like felspar and mica are fused more readily than quartz, but analysis shows that some fulgurite glasses are very rich in silica, which perhaps was dissolved in the glass rather than simply fused. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 3 "Frost" to "Fyzabad" 2011-08-15T02:00:28.473Z India plans to extend the government’s health insurance coverage to workers in industries such as asbestos, dolomite and mica, Finance Minister Pranab Mukherjee said in February. India Spending Plans May Lead to More Rate Rises, Gokarn Says 2011-07-27T07:44:01Z The proportion of mica is small, and this mineral is often absent. Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas 2011-07-10T02:00:18.883Z Behind the disc of mica lay a piece of oat straw. The Last Straw 2011-06-27T02:00:58.100Z Secondary mica is also a common result of alteration, and among other products are pinite, epidote, saussurite, chlorite, wollastonite and various zeolites. Encyclopaedia Britannica, 11th Edition, Volume 10, Slice 2 "Fairbanks, Erastus" to "Fens" 2011-06-19T02:00:16.580Z The firelight showed through the mica in the stove grate. A Cry in the Wilderness 2011-06-01T02:00:28.933Z The mountain itself is a black mica, immediately adjoining to the city. Lachesis Lapponica A Tour in Lapland 2011-05-10T02:01:00.460Z Like the northern granitical tracts, the mica is generally replaced by hornblende. Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas 2011-07-10T02:00:18.883Z Many of the metamorphic terranes consist essentially of quartz, feldspar, and mica, which have been formed by the rearrangement of the mineral matter contained in the rocks during their previous state. North America 2011-05-05T02:00:20.027Z On one altar were two bushels of ornaments made of stone, copper, mica, shells, bears' teeth, and sixty thousand pearls. American Indians 2011-04-21T02:00:55.200Z Tobacco was a better crop than corn, a more valuable export than mica, lumber, iron, pitch, tar, walnut or cedar. The Pocahontas-John Smith Story 2011-04-15T02:00:20.537Z It is generally composed of gneiss and mica schist. The New Gresham Encyclopedia Volume 4, Part 1: Deposition to Eberswalde 2011-04-14T02:00:57.977Z With the two preceding minerals, mica and feldspar, and common quartz, it constitutes the mountain peaks of that remarkable district. Scenes and Andventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas 2011-07-10T02:00:18.883Z Common examples of metamorphic rocks are mica, schist, gneiss, 324 statuary marble, certain granites, etc. North America 2011-05-05T02:00:20.027Z Fly looked down through the mica window at his feet and saw, crouching between the four walls of the roof, a monstrous feathered shape, apparently headless, its wings folded. The Boy Scouts of the Air in Indian Land 2011-04-11T02:00:11.027Z On the Deerfield River, a tributary of the Connecticut, we have a gulf called the Ghor, eight miles long and several hundred feet deep, cut crosswise through the mica slate and gneiss by the stream. The Religion of Geology and Its Connected Sciences 2011-02-28T03:00:28.890Z Gneiss, a crystalline rock, consisting of quartz, feldspar, and mica. A Manual of the Antiquity of Man 2011-02-21T03:00:07.080Z Thus the rock-forming substances, quartz, felspar, and mica, have each a definite chemical composition. Geology 2011-02-20T03:00:12.660Z The process of washing the sand of the rivulet was hard and very tedious; for the gold was found in minute scales, like mica. The World and Its People: Book VII Views in Africa 2011-02-13T03:00:17.920Z In addition to these minerals emery sometimes contains quartz, mica, tourmaline, cassiterite, &c. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 "Electrostatics" to "Engis" 2011-02-06T03:00:53.093Z Some of them I believe are composed of mica and quartz. The South-West By a Yankee. In Two Volumes. Volume 2 2011-02-05T03:00:13.817Z A peculiarity here is the occurrence of a considerable quantity of mica in direct contact with the asbestos, a circumstance which has not hitherto been found to be the case anywhere else. Asbestos Its production and use, with some account of the asbestos mines of Canada 2011-02-01T03:00:13.163Z In foliated rocks, the minerals are chiefly quartz, felspar, and mica, talc, or chlorite. Geology 2011-02-20T03:00:12.660Z Roscoelite is a vanadium mica from a gold mine at Granite creek, California. The Galaxy Vol. XXIII?March, 1877.?No. 3 2011-01-31T03:00:16.193Z A little further on I observed close to the road a rather lofty stone containing in its substance large fragments of mica. Lachesis Lapponica A Tour in Lapland, Volume 1 2010-12-31T03:00:11.350Z Many of them are a variety of the mica and of a brown colour, sometimes inclining to green, and highly polished. The South-West By a Yankee. In Two Volumes. Volume 2 2011-02-05T03:00:13.817Z The specific gravity of biotite is, as a rule, higher than that of other micas, varying from 2.7 to 3.1 according to the amount of iron present. Encyclopaedia Britannica, 11th Edition, Volume 3, Slice 7 "Bible" to "Bisectrix" 2010-12-20T17:12:05.780Z But there is still much to be learned about quartz, felspar, and mica; for, as the chemist will tell us, these are not 'elementary substances.' Geology 2011-02-20T03:00:12.660Z The beach glistened with minute particles of mica, deposited in moir� patterns as the wavelets had left them, and to touch that sand with your hand was to withdraw it again all infinitesimally spangled. The Tower of Oblivion 2010-12-20T17:11:53.787Z Maybe it comes from the Bronx water or the mica schist under Yankee Stadium, but Yankees owners and executives have often managed to make their superstars feel poorly. Sports of The Times: Maybe Jeter Should Leave and Expand His Horizons 2010-12-01T21:09:00Z The couches face a boxy coffee table made from American walnut and mica, with a fruit bowl — not flowers — as its centerpiece. President?s Office Takes On New Neutral Tones, but Keeps Its Familiar Shape 2010-09-01T01:50:00Z You remember the cleavage of the flags of Halifax and Over Darwen, which is caused by the interposition of plates of mica between the layers. The Glaciers of the Alps Being a narrative of excursions and ascents, etc. And so on with mica and felspar, and every other mineral. Geology 2011-02-20T03:00:12.660Z Scattered over the beach where they had dropped them lay their bright wraps, the prints of their sandals patterned the mica. The Tower of Oblivion 2010-12-20T17:11:53.787Z Originating from the viscid sediment of the sea, becoming harder and stiffer in the fire, their powder unctuous before exposure to fire; as serpentine, asbestus, mica. Lives of Eminent Zoologists, from Aristotle to Linnæus with Introductory remarks on the Study of Natural History Amundsen now replaced these with chimneys of tin, and fitted thin sheets of mica over the peep-holes. Farthest North Being the Record of a Voyage of Exploration of the Ship 'Fram' 1893-1896 Here is a mass of pure white wax: there are no mica particles here; there are no scales of iron, or anything analogous mixed up with the mass. The Glaciers of the Alps Being a narrative of excursions and ascents, etc. Saccharoid marble is one of the fine varieties: it frequently contains flakes of mica. Geology 2011-02-20T03:00:12.660Z Little wisps of her dark hair were still damp from her bathe, and her skirt was dusted with particles of mica from the sands. The Tower of Oblivion 2010-12-20T17:11:53.787Z The rocks of the central zone consist of granite, gneiss, hornblende, mica slate, and other slates and schists. The New Gresham Encyclopedia. Vol. 1 Part 1 A to Amide By using very thin mica sheets, and a large number of elements, a very narrow transverse section of selenium, together with a large active surface, can be obtained. Wireless Transmission of Photographs Second Edition, Revised and Enlarged 1919 I believe that even if these plates of mica were wholly absent, the cleavage of slate-rocks would be much the same as it is at present. The Glaciers of the Alps Being a narrative of excursions and ascents, etc. When mica or felspar occurs plentifully, we have, in the one case, micaceous sandstone, and in the other felspathic sandstone. Geology 2011-02-20T03:00:12.660Z In dim twilight a spark of life glittered, glinted like a bit of mica catching the sun, on a vast face of gray cliff above a dead gray sea. Where the Path Breaks I picked up every detail of our parting and held it pressed against my heart, each grain of red earth, each flash of mica in the road. Woman A small rectangular piece of porcelain, slate, mica, or other insulator, is wound with many turns of fine platinum wire. Wireless Transmission of Photographs Second Edition, Revised and Enlarged 1919 The rounded grains of sand will reach the bottom first, the mica afterwards, and when the tide recedes we have the little plates shining like spangles upon the surface of the sand. The Glaciers of the Alps Being a narrative of excursions and ascents, etc. Sometimes hornblende, or augite, or mica is present. Geology 2011-02-20T03:00:12.660Z Then let another brass ring be prepared, a little larger, so as to contain the former one; and let a glass or a very thin plate of mica be fitted to one side of it. On the magnet, magnetick bodies also, and on the great magnet the earth a new physiology, demonstrated by many arguments & experiments Ring forth in me Beneath fresh boughs of greenery, Down radiant pathways, full of sun; Ye glints of silvery mica, be Bright joy amid my stones—and ye White pebbles that the waters strew. Poems of Emile Verhaeren Could it be only mica that glistened so? Unexplored! Gneiss, which is composed of quartz, feldspar, and mica, more or less distinctly slaty, is inferior to granite. The Future of Road-making in America What is one of the most distinguishing characteristics of mica? Geology 2011-02-20T03:00:12.660Z Crystal, mica, glass, and all electricks do not attract if they are burnt or roasted; for their primordial supplies of moisture perish by heat, and are changed and exhaled. On the magnet, magnetick bodies also, and on the great magnet the earth a new physiology, demonstrated by many arguments & experiments Two large craters formed at the summit of the mountain, discharging numerous incandescent projectiles with white ashes, and glittering with particles of mica, which frequently recurred. The Eruption of Vesuvius in 1872 Granite , a granular rock consisting of quartz, mica and feldspar,—the material of the original crust of the earth. Unexplored! In the course of a walk of two miles over these hills, the only rock I observed was granite, verging in a few places towards gneiss, and generally whitish, with black mica. Narrative of a Second Expedition to the Shores of the Polar Sea The igneous rocks are chiefly granite; and granite is formed of orthoclase-feldspar, mica, and quartz. Nature's Miracles, Volume 1 Familiar Talks on Science—World-Building and Life. Earth, Air and Water. The small portions of mica or talc which they contain, give them a brilliant and silky lustre. Travels in Tartary, Thibet, and China During the years 1844-5-6 Volume 2 Above, on the hills, the little villages shone in the moonlight, like handfuls of scattered mica. Shadows of Flames A Novel A stratified primary rock, composed of the same materials as granite, but having usually a larger proportion of mica and a laminated texture. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Most of the beds contain scales of mica, and some of them have nodules of indurated iron-shot clay which exhibit obscure impressions of shells. Narrative of a Second Expedition to the Shores of the Polar Sea Miss Flint's eyes were shining with the love-of-life lamps, the mica powder of romance, and a brilliant anticipation of Harry Trimp. Just Around the Corner Romance en casserole The fine, even sand of the vast arena, bordered with a million heads, gleamed like mica dust beneath the light, falling from a sky as blue as the enamel on the statuettes of Osiris. Library of the World's Best Literature, Ancient and Modern, Vol. 15 It folds quite flat, has four mica windows, and is easily put together. Camp and Trail A simple mineral, generally of a deep red color, crystallized; most commonly met with in mica slate, but also in granite and other igneous rocks. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Scales of mica are interspersed through this stone. Narrative of a Second Expedition to the Shores of the Polar Sea His slightly crepuscular eyes took on the sheen of mica; the color ran high in her face, and her lips parted. Just Around the Corner Romance en casserole The soil of the greater portion of the county, i.e. the granite, quartz and mica slate districts, is thin and cold, while that on the carboniferous limestone is warm and friable. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 6 "Dodwell" to "Drama" In the hollows and chasms of the precipices formed by these lofty mountains, you see nothing but great heaps of mica and laminated stones, broken, bruised, and in some cases absolutely pulverised. Travels in Tartary, Thibet, and China During the years 1844-5-6. Volume 1 [of 2] It is usually composed of three simple minerals, felspar, quartz, and mica, and derives its name from having a coarse granular structure; granum, Latin for grain. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The mica is mostly black in all the granite boulders that occur here, the felspar most frequently reddish. Narrative of a Second Expedition to the Shores of the Polar Sea Other minerals extracted include salt, kaolin, chalk, talc, asbestos, gypsum, mica, fluorite, quartzite, antimony, lime, sandstone, slate, and pyrites. Area Handbook for Bulgaria We have shells, mica, and lepidoptera for exchange. St. Nicholas Magazine for Boys and Girls, Vol. 8, May 1878, No. 7. An Illustrated Magazine for Young Folks It may be readily distinguished from other colourless transparent minerals, with a perfect cleavage and pearly lustre—mica, talc, brucite, gypsum—by its greater hardness of 6�-7. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" The cast-off shells, resembling thin scales, and occurring in countless myriads in many ancient freshwater marls, impart to them a divisional structure, like that so frequently derived from plates of mica. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology It has, generally, a flesh-red colour, and contains some specks of augite, but little or no mica. Narrative of a Second Expedition to the Shores of the Polar Sea Clay and slate are made out of feldspar and mica. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place The afternoon sun shone through the entrance and gleamed on little bits of mica and spar in the walls, making them glitter like diamonds. The Head Girl at the Gables The other minerals found in the concentrates are pebbles and fragments of pyrope, zircon, cyanite, chrome-diopside, enstatite, a green pyroxene, mica, ilmenite, magnetite, chromite, hornblende, olivine, barytes, calcite and pyrites. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" In Italy this term has been applied to a siliceous sandstone sometimes containing calcareous grains, mica, &c. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology The surfaces of the slates exhibit interspersed scales of mica. Narrative of a Second Expedition to the Shores of the Polar Sea Granite is made of quartz, feldspar, and mica, sometimes with added particles of hornblende. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place The surface of the ground, so dull and forbidding at first sight, besides being rich in plants, shines and sparkles with crystals: mica, hornblende, feldspar, quartz, tourmaline. My First Summer in the Sierra Hoar-frost heavier every morning; and thin ice edged round stagnant pools like layers of mica. The Story of the Trapper One of the metamorphic or crystalline stratified rocks of the hypogene class, which is characterized by being composed of a large proportion of mica united with quartz. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology There are many specks of coaly matter disseminated through it, and some minute scales of mica, and perhaps of quartz. Narrative of a Second Expedition to the Shores of the Polar Sea Granites differ in colouring because the minerals that compose them, the feldspars, quartzes, micas, and hornblendes, have each so wide a range of colour. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place It consists of a solid column of mica schist, fourteen feet in height, fixed in a massive pedestal of red granite, and is of substantial rather than graceful proportions. The Atlantic Monthly, Volume 16, No. 94, August, 1865 Many of the so-called insulators, such as mica, ebonite, indiarubber, and the insulating oils, paraffin, &c., decrease in resistivity with great rapidity as the temperature rises. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 8 "Conduction, Electric" Vesuvian minerals.—A great variety of minerals are found in the lavas of Vesuvius and Somma; augite, leucite, felspar, mica, olivine, and sulphur are most abundant. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology It is fine grained, hard, has a somewhat vitreous lustre and contains little or no disseminated mica. Narrative of a Second Expedition to the Shores of the Polar Sea The feldspar and mica fragments form clay; the quartz fragments, sand. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place The mica card is generally mounted on a brass framework, F F, with a brass cap, C, fitted with a sapphire centre and carrying four magnetized needles, N, N, N, N, as in fig. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 7 "Columbus" to "Condottiere" The ice of our winters and of our polar regions is its handiwork, and so equally are the quartz, feldspar, and mica of our rocks. The Voice of Science in Nineteenth-Century Literature Representative Prose and Verse Down in the depths below, hidden in chlorite and mica, lies the cherry-coloured sparkling almandine, on which the tablet of our lives is graven. The Serapion Brethren, Vol. I. CLINTONITE, a group of micaceous minerals known as the “brittle micas.” Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" If mica is a prominent element, the metamorphic rock is easily parted into overlapping, scaly layers. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place The card is a mica disk, either painted as in fig. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 7 "Columbus" to "Condottiere" A graduate of Ann Arbor and post-graduate of Yale played with a cigarette as he gazed at his own fancies through the mica glow of the coal stove. Through Our Unknown Southwest The felspar decomposes into kaolin and quartz; its alkalis are for the most part set free and removed in solution, but are partly retained in the white mica which is constantly found in crude china-clays. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" They differ chemically from the micas in containing less silica and no alkalis, and from the chlorites in containing much less water; in many respects they are intermediate between the micas and chlorites. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" It has the peculiarity of splitting into thin, leaf-like, flexible sheets, so it is easy to find out which particles in a piece of granite are mica. Earth and Sky Every Child Should Know Easy studies of the earth and the stars for any time and place From this it arose that syenite was regarded as a variety of granite in which the mica is replaced by hornblende, and this has generally been the British view of the question. Volcanoes: Past and Present The mineral called mica, described in the course of the last chapter, is closely connected with another, differing from it in containing a considerable quantity of magnesia. Modern Painters, Volume IV (of V) The alkalis are very interesting; often they form 5 or 10% of the whole rock; they indicate abundance of white micas or of undecomposed particles of felspar. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" The monologue became an avalanche of coal, red hematite, marble, mica, manganese, tar, timber, turpentine, lumber, lead, ochre, and barytes, with signs of silver, gold, and diamonds. John March, Southerner If the surface be cylindrical, thin sheet mica attached to it, and smoked, gives excellent results, and offers but little resistance to all the scribing points employed. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Among the relics associated with those works are articles of pottery, knives, and copper ornaments, hammered silver, mica, obsidian, pearls, beautifully sculptured pipes, shells, and stone implements. The Story of Extinct Civilizations of the West Gradually the knots diminish in size, the mica becomes more abundant and more definite in direction, and at last the mass, when broken across the beds, assumes the appearance of Fig. Modern Painters, Volume IV (of V) It consists of very fine scaly kaolin, larger, shining plates of white mica, grains of quartz and particles of semi-decomposed felspar, tourmaline, zircon and other minerals, which originally formed part of the granite. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" The surface of the roughest ground covered large deposits of lead, zinc, mica and several varieties of choice clay. Solaris Farm A Story of the Twentieth Century Closely allied to the chlorites is another group of micaceous minerals known as the vermiculites, which have resulted by the alteration of the micas, particularly biotite and phlogopite. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" Sometimes the coal in the stove settled with a crumbling sound, and the four panes of mica flashed a sudden new crimson. The Monster and Other Stories These crystalline or spotted rocks we must again separate into two great classes, according to the arrangement, in them, of the particles of a substance called mica. Modern Painters, Volume IV (of V) Small pieces of mica can be glued over the windows instead of glass. What Shall We Do Now?: Five Hundred Games and Pastimes In breaking ground for opening the new mica and zinc mines, a great quantity of peculiar clay was discovered. Solaris Farm A Story of the Twentieth Century The cleavage is, however, not quite so prominent as in the micas, and the cleavage flakes though pliable are not elastic. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 3 "Chitral" to "Cincinnati" The room was bathed in the half-light that came from the four dull panes of mica in the front of the great stove. The Monster and Other Stories The rocks in which the mica lies regularly I shall call Slaty Crystallines. Modern Painters, Volume IV (of V) The flaming tapers were reflected in places from many points of quartz, or mica. The Girls of Central High on Lake Luna or, The Crew That Won Valuable mines of mica, lead and zinc, were opened and successfully worked. Solaris Farm A Story of the Twentieth Century The metal sheets may be separated by air or mica or paraffined paper. Letters of a Radio-Engineer to His Son We have found it an excellent method to provide some thin plates of mica, the thinner the better, of a uniform size, say two inches square, or even less. Fungi: Their Nature and Uses The sharp recording stylus, actuated by a vibrating mica diaphragm, cuts the wax from the strip. Development of the Phonograph at Alexander Graham Bell's Volta Laboratory Contributions from the Museum of History and Technology, United States National Museum Bulletin 218, Paper 5, (pages 69-79) Watch for "high mica," which means a condition in which the insulation between the segments projects above the surface of the commutator, due to the commutator wearing down faster than the insulation. The Automobile Storage Battery Its Care And Repair Reid got up in morose impatience, flinging away his cigarette, went to the wagon, looked in, slammed the little canvas door with its mica window shut with a bang, and turned back. The Flockmaster of Poison Creek For example, if we make a condenser by using two pieces of metal and separating them by a sheet of mica we don’t want the job of splitting the mica. Letters of a Radio-Engineer to His Son Between two of these plates of mica enclose a fragment of the mould, taking care not to move one plate over the other after the mould is placed. Fungi: Their Nature and Uses Copper––or leastways it looks like copper, and there’s mica, an’ lots––an’ lots of stuff. The Twins of Suffering Creek High mica, loose brush spring, or a commutator which has been turned down off-center may cause the trouble. The Automobile Storage Battery Its Care And Repair They are chiefly made of crystals of various minerals, such as quartz, felspar, mica, and pyrite. Boy Scouts Handbook The First Edition, 1911 Copper wires, tinfoil, glass plates, sheets of mica, metal, and wood. Letters of a Radio-Engineer to His Son Fix the plates by a clip, whilst strips of paper are gummed or pasted over the edges of the mica plates so as to hold them together. Fungi: Their Nature and Uses It is thus, thought we, that our manufacturers of fancy wax deal by their mica. Leading Articles on Various Subjects The remedy for this trouble is to keep the mica under-cut, and to be very careful to center the armature in the lathe when taking a cut from the armature. The Automobile Storage Battery Its Care And Repair Granite often contains large crystals of felspar or mica. Boy Scouts Handbook The First Edition, 1911 But it is not to the city, shining like a flake of mica from the greenness of the distant mountain, that our looks and thoughts are turning. Out-of-Doors in the Holy Land Impressions of Travel in Body and Spirit The shining substance which he had supposed was silver, was nothing but a worthless species of mica, or quartz. Ferdinand De Soto, The Discoverer of the Mississippi American Pioneers and Patriots II The moon shines coldly out of an intense blue sky where a few stars glisten faint as mica. Rosinante to the Road Again If this condition arises, the mica should be cut down until it is slightly below the surface of the commutator. The Automobile Storage Battery Its Care And Repair The model boat builder can also use either mica or glass for this purpose, although thick glass looks somewhat out of place. Boys' Book of Model Boats Fine-grained gneiss, composed of white quartz, white feldspar, and black mica, with a vein containing hornblend and crystals of feldspar. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island The mountains were chiefly of red sand-stone; and the soil of the hills, producing the Camellia, was a brown loam mixed with particles of mica. Travels in China, Containing Descriptions, Observations, and Comparisons, Made and Collected in the Course of a Short Residence at the Imperial Palace of Yuen-Min-Yuen, and on a Subsequent Journey through the Country from Pekin to Canton Two square sheets of green colored mica rolled out from the bundle. Ralph on the Overland Express The Trials and Triumphs of a Young Engineer It had nothing in it but some mica and galena, but Russell had given it as his opinion that it was the gold-bearing rock of the region. Rimrock Trail These can be backed up with mica or celluloid. Boys' Book of Model Boats Very fine-grained gneiss, composed of white quartz, flesh-coloured feldspar, and black mica. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island But as I stood studying this, before putting it in next to Poppsy’s huge Christmas-card gay with 249 powdered mica I felt a foolish tear or two run down my cheek. The Prairie Child He did not have to explain what those two sheets of green mica signified—Ralph knew too well. Ralph on the Overland Express The Trials and Triumphs of a Young Engineer This range consists of granite, with ramifications of schist, and large masses of quartz, mica, and felspar. Rambles in the Islands of Corsica and Sardinia with Notices of their History, Antiquities, and Present Condition. The port-holes in the deck-house and hull are made by little pieces of brass forced in place over a small piece of mica. Boys' Book of Model Boats Gneiss, composed of yellowish feldspar, white quartz, and black mica. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island In 1840, Abel Stillman, Poland, N.Y., was granted a United States patent on a family coffee roaster having a mica window to enable the operator to observe the coffee while roasting. All About Coffee The gleaming something which he held aloft was nothing but a bit of discolored mica that had reflected the faint light. The Black Buccaneer Fossils abound: the bituminous beds glitter bright with glossy quadrangular scales, that look like sheets of black mica inclosed in granite. The Cruise of the Betsey or, A Summer Ramble Among the Fossiliferous Deposits of the Hebrides. With Rambles of a Geologist or, Ten Thousand Miles Over the Fossiliferous Deposits of Scotland Likewise the mica often weathers more quickly than the surrounding minerals, giving a pitted appearance; in marbles and limestones its irregular occurrence may spoil the appearance. The Economic Aspect of Geology Fine-grained granite, composed of white quartz, white feldspar, and olive-green mica. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island The roasting coffee may be viewed through a mica or wire-gauze panel inserted in the wall of the outer cylinder. All About Coffee The little violet blossoms, heaped up near one another, formed unequal plates, and the soil, which was giving way underneath, placed soft dark fringes on the sand spangled with mica. Sentimental Education, Volume II The History of a Young Man It is composed of quartz, feldspar, and mica in varying proportions, and includes several common varieties which mineralogists distinguish scientifically by separate names. The Book of the National Parks For ground mica, the domestic production exceeds in tonnage the total world production of sheet mica, and is adequate for all demands. The Economic Aspect of Geology Fine-grained granite, composed of yellowish feldspar, white quartz, and black mica. Account of a Voyage of Discovery to the West Coast of Corea, and the Great Loo-Choo Island AVENTURINE, or Avanturine, a variety of quartz containing spangles of mica or scales of iron-oxide, which confer brilliancy on the stone. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 1 "Austria, Lower" to "Bacon" Another commonly occurring mineral which is rich in potash is mica, which has been found to contain from 5 to 13 per cent. Manures and the principles of manuring He’s at the Antiquarian Society the night, presenting a great curiosity that was found in a quarry of mica slate in the hill at the back of Balwylie. Spare Hours The associated minerals, mainly quartz and feldspar, are ordinarily present in amounts greater than the mica. The Economic Aspect of Geology In this quartz sand are a few grains of iron which the magnet picks out, and a number of scales of yellow mica. Conservation Reader Structurally, therefore, these isles are a continuation of Land's End, but the granite has become less consistent and more friable; it is largely broken into felspar, quartz, and mica, with schorl, chlorite, and hornblende. The Cornwall Coast There are two kinds of mica—that containing potash, and that containing magnesia, in excess. Manures and the principles of manuring L. It is rust of iron, finely crystallised: from its resemblance to mica, it is often called micaceous iron. The Crown of Wild Olive also Munera Pulveris; Pre-Raphaelitism; Aratra Pentelici; The Ethics of the Dust; Fiction, Fair and Foul; The Elements of Drawing Abundance of mica, especially where segregated along the stratification planes, permits easy splitting of the rock under weathering. The Economic Aspect of Geology We see also little scales of yellow mica, sometimes called "fool's gold," and a few grains of iron. Conservation Reader We drew closer to him, so close that I fancied I could see his eyes glittering through the mica plate of his mask as he turned to look at us. The Motor Pirate Gneiss, another common rock, is similar in composition, only that it contains very little felspar, and a correspondingly greater amount of mica. Manures and the principles of manuring First, you will feel it is far heavier than the mica. The Crown of Wild Olive also Munera Pulveris; Pre-Raphaelitism; Aratra Pentelici; The Ethics of the Dust; Fiction, Fair and Foul; The Elements of Drawing Certain special varieties of igneous rocks, known as pegmatites, carry coarsely crystallized mica and feldspar of commercial value, as well as a considerable variety of precious gems and other commercial minerals. The Economic Aspect of Geology Inferior stones are found imbedded in mica slate in Europe. Boy Scouts in the Canal Zone The Plot Against Uncle Sam Worms and mica don't exist in the same soil. The Jucklins A Novel Edible.—The glistening coprinus received its name because of the very delicate scales which often cover the surface of the cap, and glisten in the light like particles of mica. Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. There are articles of pottery, elegantly designed and finished; ornaments made of silver, bone, mica from the Alleghanies, and shells from the Gulf of Mexico. Ancient America, in Notes on American Archaeology The gangue is usually quartz, containing smaller amounts of a number of less common minerals—including lithium mica, fluorite, topaz, tourmaline, and apatite. The Economic Aspect of Geology Limestone rock promised material for plaster; an extraordinary deposit of rock rich in mica promised windows. Panther Eye The sample of mica was closely inspected, numerous questions were asked, and after a time Mr. Clarm said that it would be well for Mr. Ging to go home with me. The Jucklins A Novel The big stove with its dozens of mica eyes threw out comforting little rays of coziness, but the real me still shivered. Letters of a Dakota Divorcee It is likely that this was merely fine sand intermixed with particles of mica. The Great Events by Famous Historians, Volume 09 Pegmatites which have been subjected to dynamic metamorphism are often not available as a source of mica, because of the distortion of the mica sheets. The Economic Aspect of Geology “All our windows are double and made of mica.” Panther Eye Think he must have been somewhat startled at my knowledge of mica; but if he should spring the subject on me a week from now he would be still more startled—at my ignorance. The Jucklins A Novel One altar contained about two bushels of ornaments made of stone, mica, shells, pearls, and the teeth of bears and other animals. Lippincott's Magazine, November 1885 Those in best preservation have been covered with mica, which has preserved both the colour and the fabric. Chats on Old Lace and Needlework The mining of a mica is facilitated by weathering, which softens the associated feldspar, making it an easier task to take out the mica blocks. The Economic Aspect of Geology One noticeable thing was their segregation, whether in the mica pools, or in two other smaller ones near by, in which I found them. Edge of the Jungle And as soon as the news spreads around, nearly every man in the community will turn out to hunt for mica, and not a speck of it will be found. The Jucklins A Novel In front was a curtain with a large window of mica which gave ample view of the road ahead. Patty's Summer Days The four frames were filled with small panes of glasslike mica. On the Edge of the Arctic or, An Aeroplane in Snowland Scrap or ground mica is obtained as a by-product of sheet mica and from deposits where the crystals are not so well developed. The Economic Aspect of Geology Yet this patch of jeweled tissue was visible only rarely as the tadpole turned forward, and in the opaque liquid of the mica pool must have ever been hidden. Edge of the Jungle "But mica of the first quality is scarce," said he, and then he asked if I wanted to buy mica. The Jucklins A Novel Certainly, there are two of them, made of thick mica. Pharaoh's Broker Being the Very Remarkable Experiences in Another World of Isidor Werner Around Lake St. Clair, masses of granite, mica slate, and quartz are found in abundance. The Conquest of Canada (Vol. 1 of 2) The principal use of sheet mica is for insulating purposes in the manufacture of a large variety of electrical equipment. The Economic Aspect of Geology They edged into the kitchen and looked up at the food, their eyes impenetrable and glittering like mica. Trapped in 'Black Russia' Letters June-November 1915 I took my trunk to a hotel, wrapped a chunk of the mica in a handkerchief and set out to look for a stove dealer. The Jucklins A Novel As I glanced out the little window, I thought I saw a light very near the mica. Pharaoh's Broker Being the Very Remarkable Experiences in Another World of Isidor Werner Their number is by no means large, and they all consist of mixtures in variable proportions of quartz, felspar, mica, hornblende, augite, and zeolites. Elements of Agricultural Chemistry Ground mica is used in pipe and boiler coverings, as an insulator, in patent roofing, and for lubricating and decorative purposes. The Economic Aspect of Geology It occurs in the various feldspars and feldspathic rocks, and in mica. Commercial Geography A Book for High Schools, Commercial Courses, and Business Colleges A pleasant-looking man came forward, and I asked him what mica was worth. The Jucklins A Novel The thick glass of the helmet blinded me a little, and I approached the window and peered out, coming face to face with a Martian, whose nose was pressed against the mica! Pharaoh's Broker Being the Very Remarkable Experiences in Another World of Isidor Werner Gneiss is a similar mixture, but characterised by the predominance of mica, and by its banded structure. Elements of Agricultural Chemistry India has long dominated the sheet mica markets of the world, and will probably continue to supply the standard of quality for many years. The Economic Aspect of Geology Granite is made of quartz, mica, and feldspar, as has been said before. Diggers in the Earth And because you don't know anything about mica. The Jucklins A Novel Wherever mica was seen glittering on the side of a mountain, it was supposed to be the same precious metal. The Western World Picturesque Sketches of Nature and Natural History in North and South America Owing to the small quantity of felspar which it contains, and the abundance of the difficulty decomposable mica, the soils formed by its disintegration are generally inferior. Elements of Agricultural Chemistry The bulk of the Indian mica is consumed in the United States, Great Britain, and Germany. The Economic Aspect of Geology First, there were tiny sparkling bits of mica. Diggers in the Earth Even Queen Elizabeth, of England, sent Frobisher on a voyage of discovery, but he only discovered a foreland and tons of mica, which he mistook for golden ore. The Rise of Canada, from Barbarism to Wealth and Civilisation Volume 1 The powder was composed of two distinct parts, fine grains of sand and small plates of mica. Fragments of science, V. 1-2 Granite is a mixture of quartz, felspar, and mica in variable proportions, and the quality of the soil it yields depends on whether the variety of felspar present be orthoclase or albite. Elements of Agricultural Chemistry The mica of India and the United States is chiefly muscovite. The Economic Aspect of Geology In some places there are mica mines yielding big sheets of this curious mineral which is used in the doors of stoves and the little windows of automobile curtains. Diggers in the Earth Talc or mica did not pay the expense of a nine month's voyage with fifteen ships. The Rise of Canada, from Barbarism to Wealth and Civilisation Volume 1 Call to mind the cleavage of the flags of Halifax and Over Darwen, which is caused by the interposition of layers of mica between the gritty strata. Fragments of science, V. 1-2 Mica slate is also a mixture of quartz, felspar, and mica, but consisting almost entirely of the latter ingredient, and consequently presenting an extreme infertility. Elements of Agricultural Chemistry Canadian mica is produced chiefly in Quebec and Ontario, and is exported principally to the United States. The Economic Aspect of Geology The three planes gleamed like mica in the intense blue of the sky. One Man's Initiation—1917 And the old man frightened her—more than the dazzling sight of the heavens visible through the mica wall. The Guardians The ice of our winters, and of our polar regions, is its handiwork, and so also are the quartz, felspar, and mica of our rocks. Fragments of science, V. 1-2 The most cursory examination shows that it almost invariably contains sand and scales of mica, and other substances can often be detected in it. Elements of Agricultural Chemistry Large shipments were made from the two former countries during the war, both to Europe and the United States, and Brazil particularly should become of increasing importance as a producer of mica. The Economic Aspect of Geology Her deep violet eyes were widely gazing down into the fire glow through the mica front, in that dreaming fashion which so soon becomes the habit of those condemned to prolonged hours of solitude. The Heart of Unaga Cautiously she opened a thick, metal door into another hall—and she stood transfixed, looking through a mica wall at the emptiness of space pinpointed with its billions of stars. The Guardians The mica and glass owe their blackness to the carbon diffused through them. Fragments of science, V. 1-2 If he had thrown his gloves into the mica fire it would have been a relief. Behind the Beyond and Other Contributions to Human Knowledge The United States is the largest consumer of sheet mica and mica splittings, absorbing normally nearly one-half of the world's production. The Economic Aspect of Geology Torn or ground up white blotting paper mixed with a little ground mica has been used for this purpose. Home Taxidermy for Pleasure and Profit A Guide for Those Who Wish to Prepare and Mount Animals, Birds, Fish, Reptiles, etc., for Home, Den, or Office Decoration She moved along the rim corridor, past the mica wall, until she came to a door that stood open. The Guardians The platinum wire, therefore. which augmented the radiation through the pure glass, augmented the absorption of the black glass and mica. Fragments of science, V. 1-2 This, however, was easily accounted for; and I knew that the sparkling effect was produced by plates of mica or selenite that entered into the composition of the rock. The War Trail The Hunt of the Wild Horse Approximately three-fifths of this consumption is in the form of mica splittings, most of which are made from muscovite in India and part from amber mica in Canada. The Economic Aspect of Geology Helen caught a glimpse of the stream where, when a child, she used to wade in the wimpling waters, and gather the diamond mica that sparkled on the sand. Helen and Arthur or, Miss Thusa's Spinning Wheel Above the lounge a mica viewplate gave her a broad view of the sky. The Guardians I believe that even if the plates of mica were wholly absent, the cleavage of slate-rocks would be much the same as it is at present. Fragments of science, V. 1-2 The "folding pocket lantern," which is nothing but a convenient tin can with mica sides, is the best equipment for travel, but an empty butter can or lard can is sometimes easier to come by. Ten Thousand Miles with a Dog Sled A Narrative of Winter Travel in Interior Alaska Due to the cheapness of labor in India and the amenability of Indian mica to the splitting process, India splittings should continue to dominate the market in this country. The Economic Aspect of Geology Then she saw bright specks of mica shining on the sand, and she sprang out of the water to gather them, wondering if pearls and diamonds ever looked half so beautiful. Helen and Arthur or, Miss Thusa's Spinning Wheel By this arrangement the silver and mica plates may be built up together so as to form the same mutual arrangement of contacts as in an ordinary mica tin-foil condenser. On Laboratory Arts Here is a mass of pure white wax: it contains no mica particles, no scales of iron, or anything analogous to them. Fragments of science, V. 1-2 I examined the earthwork, and found in it, about four feet below the surface, remains of charcoal and charred bones, burnt earth, and considerable quantities of mica. The Continental Monthly, Vol. 5, No. 5, May, 1864 Devoted To Literature And National Policy Amber mica is a variety peculiarly adapted to certain electrical uses. The Economic Aspect of Geology It darkens the color of diamonds, quartz, mica, and glass. Electricity for Boys If good results are desired it is essential to select the mica very carefully. On Laboratory Arts Now this structure cleaves with readiness along the planes in which the particles of mica are strewn. Fragments of science, V. 1-2 This stone is a volcanic rock called hornblende, of very fine grain, with minute specks of mica. Brittany & Its Byways There are no known commercial deposits of this mica in the United States, but American interests own the largest producing mines in Canada. The Economic Aspect of Geology Yellow landscape, spatter cones, glittering streaks that might be metal in the volcanic ground—created by dusting ground mica on wet glue to catch the reflection of the sun. Question of Comfort Sheets of mica about 0.1 to 0.2 mm. thick form good serviceable condenser plates, and will certainly stand a pressure of 300 volts, and most likely a good deal more. On Laboratory Arts They contain silica, alumina, potash, soda, and mica mixed mechanically together. Fragments of science, V. 1-2 The mica and crystals are in place up there if we could only p. 64 reach them. Space Prison Shipments of Brazilian mica are not of such uniformly high quality as the Indian material, but promise to become of increasing importance in American markets. The Economic Aspect of Geology Or pageantries here upon our earth, and things looking down upon us—and the Crusades were only dust clouds, and glints of the sun on shining armor were only particles of mica in dust clouds. The Book of the Damned In the second place, the amount of mica and tin-foil required is often excessive in consequence of the imperfect contact of these substances. On Laboratory Arts Do not make the mistake, either, of thinking that the shining yellow scales of mica which you see in the sand in the bottom of a clear stream are gold. The Western United States A Geographical Reader Craig brought back several sheets of unusually transparent mica, each sheet a foot in diameter, and a dozen large water-clear quartz crystals. Space Prison Of the sheet mica consumed annually, the United States normally produces about one-third. The Economic Aspect of Geology His great fear was that the Indians in their ignorance might have taken some white shining stone or mica for the precious metal. The Silver Canyon A Tale of the Western Plains A watch may be kept on the process by immersing a minute strip of mica alongside the thread. On Laboratory Arts There was a bright glitter here, but it was only the large flakes of mica in the stone. Menhardoc They began to see mica and quartz crystals in the creek bed and at noon on the second day they passed the last stunted tree. Space Prison It is hardly possible for any one mine to standardize and classify its product, although progress was made in this direction during the war by the organization of associations of mica producers. The Economic Aspect of Geology She answered with a mica, a word which she employed just as frequently as Che mi fa, but I went on: "It is always pleasant after a journey." The Works of Guy de Maupassant, Vol. 1 Boule de Suif and Other Stories At ordinary temperatures "mica" of the kind found in commerce is an excellent insulator. On Laboratory Arts It is formed of grains of quartz, mica the shiny, and felspar, that soft white creamy stone like our old alley marbles. Menhardoc A mile farther was the vein the mica had come from. Space Prison Besides the colouring principle of the lazulite, there are always more or less mica and iron pyrites, the latter a lustrous yellow bisulphide of iron, which has often been mistaken for pellets of gold. Field's Chromatography or Treatise on Colours and Pigments as Used by Artists Serpentine, talc, asbestos, and meerschaum are important complex silicates of aluminium and magnesium, and granite is a mechanical mixture of quartz, feldspar, and mica. An Elementary Study of Chemistry Voltage 300 volts on a plate 0.2 mm. thick, duration of charge ten minutes, temperature about 20° C. To get this result the mica must be most carefully dried. On Laboratory Arts The sun in his short hair seemed laughing, picking out little flecks of gold as mica flakes in the sea waves turn and flash. Trail's End Sheets of mica were brought down from the Craigs, the summits of which were deeply buried under snow even in midsummer. Space Prison It consists of a small piece of lac over which is smeared vermilion, while above it a piece of mica or thin glass is fixed for ornament. The Tribes and Castes of the Central Provinces of India - Volume IV of IV Kumhar-Yemkala With a big hammer which had belonged to his great-grandfather, an old buccaneer, the boy went about chipping the stones, and accumulating specimens of mica, porphyry, garnet, and such like. How to Get on in the World A Ladder to Practical Success Speaking generally, the Russian micas coming into commerce are potash micas, and mica purchased in England may be taken to be potash mica, especially if it is in large sheets. On Laboratory Arts Silver, copper, lead, asbestos, plumbago, mica, etc., are found in varying quantities. Up To Date Business Home Study Circle Library Series (Volume II.) Stoves were made of fireclay and mica, which would give both heat and light and would be more efficient than the open fireplaces. Space Prison For annealing high-speed steel, some makers recommend using ground mica, charcoal, lime, fine dry ashes or lake sand as a packing in the annealing boxes. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel In his roamings, ever with his eyes to earth for minerals, he finds stones specked with mica, and false diamonds, whence the height above Quebec is called Cape Diamond. Canada: the Empire of the North Being the Romantic Story of the New Dominion's Growth from Colony to Kingdom M. Carpentier begins, of course, by having his mica scrupulously clean and well selected. On Laboratory Arts At one place we found many exfoliating lumps of mica; we cleaved out sheets of it nearly a foot square, which Addison believed might prove valuable for stove doors. A Busy Year at the Old Squire's But now it glistens with crystals of mica and quartz. Musical Portraits Interpretations of Twenty Modern Composers Arrange the steel so as to allow at least 1 in. of packing, consisting of dry powder ashes, powdered charcoal, mica, etc., between the pieces and the walls of the box or pipe. The Working of Steel Annealing, Heat Treating and Hardening of Carbon and Alloy Steel On a moonlight night a bit of wax, with powdered mica scattered on it, will sometimes answer. Natural History of the Mammalia of India and Ceylon For instance, the residual charge in a silvered mica plate condenser, carefully dried, can be increased at least tenfold by an exposure of a few minutes to ordinarily damp air. On Laboratory Arts He must not give you pewter for silver, or pinchbeck for gold, or mica for diamond. Autobiography of Seventy Years, Vol. 1-2 There is generally a sprinkling of finely-powdered mica, but no shell matter can be detected. Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881 Third Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1881-82, Government Printing Office, Washington, 1884, pages 427-510 It stood all alone in a dazzling wilderness that was doubtless green at certain seasons of the year, but now was bone-dry and glittering with flakes of mica. The Lion of Petra The use of mica plates, which are found of large size in some of the Western mounds, has excited some inquiry. Scientific American, Volume XXIV., No. 12, March 18, 1871 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures. M. Bouty, using less perfectly dried mica, did not get so good a result as to smallness of residual charge as the one above quoted. On Laboratory Arts Thallium is a rare metal, found in small quantities in some varieties of iron and copper pyrites, and in some lithia micas. A Text-book of Assaying: For the Use of Those Connected with Mines. The material has been a dark clay paste with tempering of powdered mica. Illustrated Catalogue of a Portion of the Collections Made During the Field Season of 1881 Third Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1881-82, Government Printing Office, Washington, 1884, pages 427-510 The brown ware, or that which shows an admixture of mica. Illustrated Catalogue Of The Collections Obtained From The Indians Of New Mexico And Arizona In 1879 Second Annual Report of the Bureau of Ethnology to the Secretary of the Smithsonian Institution, 1880-81, Government Printing Office, Washington, 1883, pages 307-428 "No, I'm Francis Lee, bossing the mica pit at Port-of-Waves," he replied, "but this letter is from Halyard, asking me to look out for a man in a hurry from Bronx Park, New York." In Search of the Unknown The chief use of mica for laboratory purposes depends on the ease with which it can be split, and also upon the fact that it may be considerably crumpled and bent without breaking. On Laboratory Arts |
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