metamorphic
Serpentine
(Mg,Fe)3Si2O5(OH)4
AI-generated identification · may be incorrectHardness 3-5 on Mohs scale, dark green to mottled green-black color, waxy to greasy luster, monoclinic crystal system, specific gravity 2.5-2.6.
Identified More metamorphic →
Explore Serpentine in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness 3-5 on Mohs scale, dark green to mottled green-black color, waxy to greasy luster, monoclinic crystal system, specific gravity 2.5-2.6.
Formation & geological history
Formed via serpentinization, a hydrothermal alteration process of ultramafic rocks from Earth's mantle, typically occurring in ancient orogenic belts.
Uses & applications
Used for ornamental carvings, interior architecture, decorative items, and as a historical source of asbestos.
Geological facts
Serpentine is the state rock of California and often mimics jade, which earned it the moniker 'false jade'.
Field identification & locations
Identified by its characteristic slickensided green surfaces, softness, and greasy feel; commonly found in ophiolite sequences worldwide.
More like this
