metamorphic
Serpentine
Mg3Si2O5(OH)4
AI-generated identification · may be incorrectHardness of 2.5 to 5.5 on the Mohs scale, varying shades of green to yellow-green, greasy or waxy luster, and specific gravity of 2.5 to 2.7.
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Physical properties
Hardness of 2.5 to 5.5 on the Mohs scale, varying shades of green to yellow-green, greasy or waxy luster, and specific gravity of 2.5 to 2.7.
Formation & geological history
Formed through the hydration and metamorphic alteration of ultramafic rocks from the Earth's mantle, typically in convergent plate boundary settings.
Uses & applications
Widely used for ornamental carvings, decorative architectural stone, and polished gemstone beads in jewelry.
Geological facts
Serpentine is the state rock of California and was historically used as a substitute for asbestos in various industrial applications.
Field identification & locations
Easily identified by its characteristic olive-green color, slippery feel, and softness that allows it to be scratched with a knife or coin.
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