igneous
Peridotite
Ultramafic intrusive igneous rock
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale, typically green to dark green or brownish, dull to vitreous luster, composed mainly of olivine and pyroxene with massive or granular crystal structure.
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Physical properties
Hardness of 6-7 on Mohs scale, typically green to dark green or brownish, dull to vitreous luster, composed mainly of olivine and pyroxene with massive or granular crystal structure.
Formation & geological history
Formed from the crystallization of magma deep within the Earth's mantle, often brought to the surface via tectonic or volcanic activity.
Uses & applications
Used primarily in scientific research regarding mantle composition, as a source for gemstone-quality peridot, and in carbon sequestration studies.
Geological facts
Peridotite is the dominant rock type of the Earth's upper mantle and can alter to serpentinite in the presence of water.
Field identification & locations
Identify by its dense, greenish mineral assemblage and ultramafic context; commonly found in ophiolite sequences and kimberlite pipes worldwide.
