metamorphic
Serpentine
(Mg,Fe)3Si2O5(OH)4
AI-generated identification · may be incorrectHardness 2.5 to 5.5 on the Mohs scale, typically olive-green to yellow-green with a greasy or waxy luster, and a monoclinic crystal system.
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Physical properties
Hardness 2.5 to 5.5 on the Mohs scale, typically olive-green to yellow-green with a greasy or waxy luster, and a monoclinic crystal system.
Formation & geological history
Formed through the hydrothermal alteration of ultramafic rocks from the Earth's mantle, typically during plate tectonic activity.
Uses & applications
Used in ornamental carvings, architectural stone, asbestos production historically, and prized by mineral collectors.
Geological facts
Serpentine is the state rock of California and often mimics the appearance of jade.
Field identification & locations
Identified by its soft, soapy feel and characteristic green coloration; commonly found in ophiolite belts worldwide.
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