Schist is a foliated metamorphic rock that contains abundant mica or other platy . for use as a construction aggregate, building stone, or decorative stone.
Schist is medium grade metamorphic rock, formed by the metamorphosis of mudstone / shale, or some types of igneous rock, to a higher degree than slate, i.e. it.
Mar 17, 2017 . Crystalline Line; Slate; Phyllite; Graywacke; Quartzite; Gneiss; Schists . Graywacke is a metamorphosed shaly sand-stone or similar.
The schists form a group of medium-grade metamorphic rocks, chiefly . in the area also used a schist called "Yonkers Stone" which is no longer available.
Schist is a medium-grade metamorphic rock. Schist has medium to large, flat, sheet-like grains in a preferred orientation It is defined by having more than 50%.
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