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.
Macroscopically it is evident in the strong schistosity, which is parallel to the structural planes of the sediments when the two are in contact.
From History and Comprehensive Description of Loudoun County, Virginia by Head, James William
Many varieties have lost all of their original character in the secondary schistosity.
From History and Comprehensive Description of Loudoun County, Virginia by Head, James William
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 Head, James William
The epidote occurs in the form of lenses arranged parallel to the planes of schistosity, reaching as high as five feet in thickness and grading from that down to the size of minute grains.
From History and Comprehensive Description of Loudoun County, Virginia by Head, James William
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 Atwood, Wallace W.
