metamorphic
Serpentinite
Serpentinite (Hydrated magnesium iron silicate)
AI-generated identification · may be incorrectHardness 2.5-5.5 on Mohs scale, typically mottled green to yellowish-green color, greasy or waxy luster, and massive crystal structure.
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Physical properties
Hardness 2.5-5.5 on Mohs scale, typically mottled green to yellowish-green color, greasy or waxy luster, and massive crystal structure.
Formation & geological history
Formed through the hydrothermal alteration of ultramafic rocks from the Earth's mantle, typically in ocean floor or subduction zone environments.
Uses & applications
Used primarily as a decorative stone, architectural facing, carving material, and source of asbestos historically.
Geological facts
Serpentinite is the official state rock of California and often hosts unique flora adapted to its heavy metal-rich soils.
Field identification & locations
Identify by its characteristic green shades, waxy feel, and softness compared to standard igneous rocks like granite.
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