any of a class of crystalline metamorphic rocks whose constituent mineral grains have a more or less parallel or foliated arrangement.
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Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use schist in a sentence
Relieving the grey sheen of the gneiss were dark bands of schist which tracked about in an irregular manner.The Home of the Blizzard | Douglas Mawson
The rock was a highly quartzose gneiss, with black bands of schist running through it.The Home of the Blizzard | Douglas Mawson
schist prevails over a considerable area, and is prolonged to the very extremity of the peninsula.The Desert World | Arthur Mangin
Solid rock is not to be seen, but all the detritus consists of granite and green schist.Trans-Himalaya, Vol. 2 (of 2) | Sven Hedin
We rode north-westwards past two small lakes, and again fell in with solid rock—green and black schist.Trans-Himalaya, Vol. 2 (of 2) | Sven Hedin
British Dictionary definitions for schist
any metamorphic rock that can be split into thin layers because its micaceous minerals have become aligned in thin parallel bands
- schistose, adjective
- schistosity (ʃɪˈstɒsɪtɪ), noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for schist
A highly foliated, medium-grained metamorphic rock that splits easily into flakes or slabs along well-defined planes of mica. The mineral composition of schist is varied and is often reflected in the name given to the rock. For example, a schist that contains garnet is called a garnet schist. A schist containing chlorite is called a chlorite schist.
- schistose adjective (shĭs′tōs′)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.