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Serpentine

Serpentinite is a metamorphic rock composed predominantly of one or more serpentine group minerals formed by near to complete serpentinization of mafic or ultramafic rocks.

Colors It Comes In - Mostly comes in green, but it can also vary from white or yellowish to gray, and from brown to black. Most serpentine rocks are veiny or spotted and may exhibit areas of chatoyancy, which can appear lighter or darker depending on the viewing angle.

Fracture - Granular or Irregular

Shape - Masses, fibrous grains, and flat-like plates. The stones often have a fine-grained and compact appearance, but they can also be granular, fibrous, or platy.

Luster - Waxy and greasy to even silky

Texture - Smooth and slippery like that of a snake

Streak - White

Locality/Where It Can Be Found -

Ural Mountains of Russia
Greece and Cyprus
Mountain ranges of New Zealand, Austria, France, Italy, and the U.S.
Areas with volcanic or metamorphic rocks
Ultramafic rocks at the oceanic moho
Leafy and fibrous aggregates
Afghanistan, China, New Zealand, and the United States
Various countries including Austria, Canada, Egypt, France, Greece, Italy, New Zealand, Pakistan, Russia, South Africa, and Wales.

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Hardness On The Mohs Scale - 2.5 To 5.5 Out Of 10

Questions, Comments, Or Concerns Mr. Alexander Needs To Know?

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