metamorphic
Schist
Metamorphic Rock (Schist)
AI-generated identification · may be incorrectMohs hardness 3-4, displays distinct foliation with visible flaky minerals like mica, colors range from silvery gray to green and brown, with a pearly to glittering luster.
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Physical properties
Mohs hardness 3-4, displays distinct foliation with visible flaky minerals like mica, colors range from silvery gray to green and brown, with a pearly to glittering luster.
Formation & geological history
Formed through regional metamorphism of pelitic sedimentary rocks under moderate to high temperatures and pressures over millions of years.
Uses & applications
Commonly used in landscaping, decorative stone, and occasionally as a low-grade building or paving material.
Geological facts
Schist is classified based on its dominant mineral constituents, such as quartz-mica schist or garnet schist, which indicate the metamorphic grade.
Field identification & locations
Easily identified by its pronounced foliation and sparkling flaky cleavage surfaces; found worldwide in ancient mountain belts and shield areas.
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