| 单词 | rutile |
| 例句 | Australia is the world’s top producer of lithium and rutile and the second-largest producer of zircon and rare earth elements. Japan, Australia upgrade security pact against China threat 2022-10-22T04:00:00Z Because beach sands, past or present, are so highly evolved, the amount of grain weathering can be discerned using the minerals zircon, tourmaline, and rutile. An Introduction to Geology 2017-01-01T00:00:00Z Rio Tinto's South African subsidiary Richards Bay Minerals extracts and refines heavy mineral sands and produces ilmenite, rutile, and zircon at its site in northern KwaZulu-Natal province. South Africa urges Rio Tinto workers to report cases of discrimination 2022-02-03T05:00:00Z Sierra Leone has abundant natural resources including iron ore, diamonds, gold, bauxite and the titanium ore rutile. Sierra Leone opposition plans to review mining code, contracts 2012-10-20T19:51:33Z 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 Regular intergrowths of crystals of totally different substances such as staurolite with cyanite, rutile with haematite, blende with chalcopyrite, calcite with sodium nitrate, are not uncommon. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" 2012-01-22T03:00:24.397Z Native gold, native platinum, zircon, ilmenite, rutile, magnetite, diamonds, and other gemstones can be found in placers. An Introduction to Geology 2017-01-01T00:00:00Z The diamonds are found in the sands and gravels of river-beds, associated with alluvial gold, specular iron ore, rutile, anatase, topaz, and tourmaline. The Romance of Industry and Invention 2011-12-19T03:00:43.870Z Iluka Resources Ltd., the world’s No. 1 producer of mineral sands, surged 11 percent after saying it expects higher prices of rutile, a mineral used in the production of ceramics and titanium. Most Asia Stocks Fall After U.S. Jobs Growth Slows; Tepco Drops 2011-06-06T01:01:01Z Biotite, if present, is brown; epidote is yellow or colourless; rutile, apatite and quartz all occur with some frequency. Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 6 "English Language" to "Epsom Salts" 2011-02-19T03:00:59.807Z The rutile is invariably in small brown prisms; the kyanite forms bladed crystals, with perfect cleavage; felspar, if present, belongs to basic varieties rich in lime. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Among the commonest associates of the diamond are quartz, topaz, tourmaline, rutile, zircon, magnetite, garnet, spinel and other minerals which are common accessory constituents of granite, gneiss and the crystalline schists. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4 "Diameter" to "Dinarchus" They are principally finely divided quartz, epidote, zoisite, rutile, limonite, calcite, pyrites, and very small particles of these are rarely absent from natural clays. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" A recent increase in political stability has led to a revival of economic activity such as the rehabilitation of bauxite and rutile mining. The 2008 CIA World Factbook The mining of diamonds, bauxite, and rutile is the major source of hard currency. The 1996 CIA World Factbook The garnet sometimes forms good dodecahedra, but may occur as rounded grains, and encloses quartz, rutile, kyanite, and other minerals very frequently. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 10 "Echinoderma" to "Edward" 2011-01-19T03:00:19.027Z Bauxite and rutile mines have been shut down by civil strife. The 2001 CIA World Factbook Plans to reopen bauxite and rutile mines shut down during an 11 year civil war have not been implemented due to lack of foreign investment. The 2005 CIA World Factbook A recent increase in political stability has led to a revival of economic activity such as the rehabilitation of bauxite and rutile mining. The 2008 CIA World Factbook A recent increase in political stability has led to a revival of economic activity, such as the rehabilitation of bauxite and rutile mining. The 2007 CIA World Factbook If, in the preceding experiment, the lampblack be replaced by a mixture of lampblack and rutile in fine powder, the slip of platinum remains absolutely intact, and does not change in weight. Scientific American Supplement, No. 365, December 30, 1882 In addition, the rock is filled with minute crystals of octahedral form which are composed of magnetite, and scattered through the rock are minute yellow crystals of rutile. 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 Plans to reopen bauxite and rutile mines shut down during an 11 year civil war have not been implemented due to lack of foreign investment. The 2005 CIA World Factbook For the ideal filament needed five per cent. of canadium, and canadium was known to the world only as a newly separated constituent of a variety of the rare mineral rutile. Tono Bungay A recent increase in political stability has led to a revival of economic activity, such as the rehabilitation of bauxite and rutile mining. The 2007 CIA World Factbook The labradorite contains inclusions of rutile and biotite and has a well-developed wedge structure and cross fracture due to the pressure and shearing which it has undergone. The Long Labrador Trail The gneiss of the littoral Cordillera, in the province of Caracas, contains almost exclusively garnets, rutile titanite and graphite, disseminated in the whole mass of the rock, shelves of granular limestone, and some metalliferous veins. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 I observed neither hornblende, black schorl, nor rutile titanite, in this granite. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 There are plans to reopen bauxite and rutile mines shut down during the conflict. The 2002 CIA World Factbook It is traversed by veins of quartz, containing cannulated and often articulated prisms of rutile titanite two or three lines in diameter. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 |
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