metamorphic
Mica Schist
Metamorphic Schist
AI-generated identification · may be incorrectHardness of 3-4 on the Mohs scale, silvery-green color, highly reflective or pearly luster, foliated crystal structure with visible platy mineral grains.
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Physical properties
Hardness of 3-4 on the Mohs scale, silvery-green color, highly reflective or pearly luster, foliated crystal structure with visible platy mineral grains.
Formation & geological history
Formed through the regional metamorphism of pelitic sedimentary rocks like shale or mudstone under high temperature and pressure conditions over millions of years.
Uses & applications
Used primarily in landscaping, decorative stone, and as a raw material source for mica extraction in industrial electrical insulation.
Geological facts
Schist is characterized by its strong foliation, which allows the rock to split easily into thin, parallel layers rich in flaky minerals.
Field identification & locations
Identified easily in the field by its glittering, scaly appearance due to abundant aligned mica flakes; commonly found in mountain-building belts worldwide.
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