| 单词 | schorl |
| 例句 | “Tourmaline hornfelses” are found sometimes near the margins of tourmaline granites; they are black with small needles of schorl which under the microscope are dark brown and richly pleochroic. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" 2012-03-15T02:00:32.250Z Greisen is closely connected with schorl rock both in its mineralogical composition and in its mode of origin. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 5 "Greek Law" to "Ground-Squirrel" 2011-12-05T03:00:51.527Z In the tourmaline granites prisms of black schorl occur either singly or in stellate groups. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 3 "Gordon, Lord George" to "Grasses" 2011-11-13T03:00:13.177Z On its northern slope is a vast mass of schorl, the celebrated Roche Rock. Nooks and Corners of Cornwall 2010-12-30T03:00:24.033Z 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 The granite is dark red, often inclosing veins of quartz, crystallized and compact, and likewise well-formed crystals of schorl. On the Old Road, Vol. 2 (of 2) A Collection of Miscellaneous Essays and Articles on Art and Literature The feldspar and the mica, for example, as well as the schorl, are found variously coloured in different granites, and coloured in various proportions. Theory of the Earth, Volume 1 (of 4) The lowest range above Djidda is calcareous; but its rocks soon change into gneiss, and a species of granite, with schorl in the place of feldspath, accompanied by predominant masses of quartz, and some mica. Travels in Arabia; comprehending an account of those territories in Hedjaz which the Mohammedans regard as sacred Roche hermitage in Cornwall occupies a spire of rocks of schorl that shoots 100 feet above the surrounding moor. Castles and Cave Dwellings of Europe I saw distinctly that, wherever they crossed each other, the veins containing mica and black schorl traversed and drove out of their direction those which contained only white quartz and feldspar. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 Sometimes the red schorl occurs only in dendritic crystals of a bright red.* Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 1 If, again, it were not properly a granite, but a stone formed of granite sand, What is the cementing substance?—Is it quartz, felt-spar, mica, or schorl?—or, Theory of the Earth, Volume 1 (of 4) Among these black schorl or tourmaline, actinolite, zircon, garnet, and fluor spar are not uncommon; but they are too sparingly dispersed to modify the general aspect of the rock. The Student's Elements of Geology In another place, I found crystals of black schorl radiating from a common centre. Volcanic Islands 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 We found in it a group of fine crystals of black schorl. Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 2 The former of these is an aggregate of schorl, or tourmaline, and quartz. The Student's Elements of Geology |
| 随便看 |
|
英语例句辞典收录了117811条英语例句在线翻译词条，基本涵盖了全部常用单词及词组的例句翻译及用法，是英语学习的有利工具。