mineral
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, pistachio-green to dark green color, vitreous luster, and monoclinic crystal system with perfect cleavage.
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Physical properties
Hardness of 6-7 on the Mohs scale, pistachio-green to dark green color, vitreous luster, and monoclinic crystal system with perfect cleavage.
Formation & geological history
Forms through hydrothermal alteration of igneous and metamorphic rocks, typically in veins and skarns during regional or contact metamorphism.
Uses & applications
Primarily used as a mineral specimen for collectors and occasionally cut into cabochons for ornamental jewelry.
Geological facts
Its name derives from the Greek word for 'increase,' referring to the base of its crystal prism having one side longer than the other.
Field identification & locations
Easily identified by its characteristic pistachio-green color and columnar crystal habits; commonly found in worldwide localities including Austria, Pakistan, and the USA.
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Other mineral specimens
Gneiss or Schist
Gneiss or Mica Schist with Garnet
Metamorphic
Sandstone (with potential mineral staining/concretions)
Arenite (SiO2 based)
sedimentary
Tumbled granite
Granite, a coarse-grained felsic intrusive igneous rock
igneous
Pegmatite with Tourmaline and Quartz
Igneous Pegmatite
igneous
Epidote
Epidote | Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)
metamorphic
Granite
Granite (Phaneritic intrusive igneous rock)
igneous