igneous
Peridotite
Ultramafic igneous rock
AI-generated identification · may be incorrectHardness 6-7 on Mohs scale, typically olive-green to dark green color, vitreous to dull luster, composed mostly of olivine and pyroxene.
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Physical properties
Hardness 6-7 on Mohs scale, typically olive-green to dark green color, vitreous to dull luster, composed mostly of olivine and pyroxene.
Formation & geological history
Formed from the crystallization of magma deep within the Earth's mantle, dating from various ancient geological eras.
Uses & applications
Used primarily in scientific research to understand mantle composition and as a source for gem-quality peridot.
Geological facts
Peridotite is the dominant rock type of the Earth's upper mantle and can alter into serpentinite in the presence of water.
Field identification & locations
Identified by its dense, greenish appearance and coarse-grained texture; commonly found in ophiolite complexes and kimberlite pipes.
