metamorphic
Serpentinite
Serpentinite (Hydrated magnesium iron silicate)
AI-generated identification · may be incorrectHardness 2.5-5.5 on Mohs scale, mottled green to greyish color, greasy or waxy luster, massive crystal habit with fibrous or foliated structure.
Identified More metamorphic →
Explore Serpentinite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness 2.5-5.5 on Mohs scale, mottled green to greyish color, greasy or waxy luster, massive crystal habit with fibrous or foliated structure.
Formation & geological history
Formed through serpentinization, a low-temperature metamorphic alteration process of ultramafic rocks from the Earth's mantle in the presence of water.
Uses & applications
Used primarily as a decorative dimension stone, carving material, and historical source of asbestos.
Geological facts
Serpentinite is the state rock of California and often hosts unique plant communities adapted to its heavy metal-rich soils.
Field identification & locations
Identify by its characteristic slippery or waxy feel, green coloration, and occurrence in or near fault zones and ophiolite sequences.
More like this
