- quartz schist
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a metamorphosed schist composed mostly of quartz with some mica and / or tourmaline
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quartz schist
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quartz-schist — quartzˈ schist noun A schistose quartzite with mica • • • Main Entry: ↑quartz … Useful english dictionary
quartz schist — noun : a metamorphosed schistose rock composed essentially of quartz often with some mica or tourmaline or both … Useful english dictionary
Schist — The schists constitute a group of medium grade metamorphic rocks, chiefly notable for the preponderance of lamellar minerals such as micas, chlorite, talc, hornblende, graphite, and others. Quartz often occurs in drawn out grains to such an… … Wikipedia
Schist — (sh[i^]st), n. [Gr. ? divided, divisible, fr. ? to divide: cf. F. schiste. See {Schism}.] (Geol.) Any crystalline rock having a foliated structure (see {Foliation}) and hence admitting of ready division into slabs or slates. The common kinds are… … The Collaborative International Dictionary of English
Quartz — This article is about the mineral. For other uses, see Quartz (disambiguation). Quartz Quartz crystal cluster from Tibet General Category … Wikipedia
schist — /shist/, n. any of a class of crystalline metamorphic rocks whose constituent mineral grains have a more or less parallel or foliated arrangement. [1775 85; < NL schistus, L (lapis) schistos < Gk schistós divided, curdled, divisible, deriv. of… … Universalium
Mica schist — Mica Mi ca, n. [L. mica crumb, grain, particle; cf. F. mica.] (Min.) The name of a group of minerals characterized by highly perfect cleavage, so that they readily separate into very thin leaves, more or less elastic. They differ widely in… … The Collaborative International Dictionary of English
mica-schist — miˈca schist or miˈca slate noun A metamorphic rock consisting of alternate folia of mica and quartz • • • Main Entry: ↑mica … Useful english dictionary
specular schist — specular schist, a rock made up chiefly of quartz, specular iron ore, and mica … Useful english dictionary
glaucophane schist facies — One of the major divisions of the mineral facies classification of metamorphic rocks, encompassing rocks whose peculiar mineralogy suggests that they formed under conditions of high pressure and relatively low temperature (generally less than… … Universalium
