metamorphic
Serpentine
Serpentine group minerals (Mg3Si2O5(OH)4)
AI-generated identification · may be incorrectHardness of 3 to 5 on the Mohs scale, typically olive-green to yellowish-green color, greasy to waxy luster, and monoclinic crystal system.
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Physical properties
Hardness of 3 to 5 on the Mohs scale, typically olive-green to yellowish-green color, greasy to waxy luster, and monoclinic crystal system.
Formation & geological history
Formed via serpentinization, a low-temperature metamorphic alteration of ultramafic rocks from Earth's mantle involving water.
Uses & applications
Used as an ornamental stone, for carved sculptures, in asbestos production historically, and as a source of magnesium.
Geological facts
Serpentine is the state rock of California and often displays a mottled appearance resembling snakeskin, which inspired its name.
Field identification & locations
Identify by its characteristic green color, softness, and greasy feel; commonly found in orogenic belts worldwide.
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