metamorphic
Greenschist
Greenschist metamorphic rock
AI-generated identification · may be incorrectHardness 3-4 on Mohs scale, greenish color due to chlorite and epidote, dull to silky luster, foliated crystal structure.
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Physical properties
Hardness 3-4 on Mohs scale, greenish color due to chlorite and epidote, dull to silky luster, foliated crystal structure.
Formation & geological history
Formed through low-grade regional metamorphism of mafic igneous rocks like basalt under moderate pressure and temperature.
Uses & applications
Used primarily as decorative building stone, landscaping material, and crushed stone for construction.
Geological facts
The green color comes from abundant green minerals like chlorite, actinolite, and epidote formed during alteration.
Field identification & locations
Identified easily by its distinct green foliation and cleavage; found worldwide in ancient mountain belts and shields.
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