schist
noun
any of a class of crystalline metamorphic rocks whose constituent mineral grains have a more or less parallel or foliated arrangement.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The ore bodies are roughly parallel to the bedding, but in instances follow the schistosity which cuts across the bedding.
From The Economic Aspect of Geology by C. K. (Charles Kenneth) Leith
A marked schistosity accompanies this alteration, and most of the schistose planes are coated with silvery muscovite.
From History and Comprehensive Description of Loudoun County, Virginia by James William Head
They are foliated in places, the planes of schistosity being more or less parallel with the planes of bedding in the schists.
From Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" by Various
Along Catoctin Mountain, however, both chemical and mechanical deformation have taken place, so that the original rock structure is completely merged into pronounced schistosity.
From History and Comprehensive Description of Loudoun County, Virginia by James William Head
Extreme pressure is likely to develop schistosity in rock, the cleavage planes being at right angles to the direction of pressure.
From The Geography of the Region about Devils Lake and the Dalles of the Wisconsin by Wallace W. Atwood
