mineral
Epidote
Ca2(Al,Fe)3(SiO4)3(OH)
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, distinct pistachio-green to dark green color, vitreous luster, and monoclinic crystal system.
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Physical properties
Hardness of 6-7 on the Mohs scale, distinct pistachio-green to dark green color, vitreous luster, and monoclinic crystal system.
Formation & geological history
Formed through regional and contact metamorphism of igneous rocks and impure limestones, often in hydrothermal veins.
Uses & applications
Primarily used as a gemstone, carved into beads and ornamental objects, or collected by mineral enthusiasts.
Geological facts
Epidote is a key mineral in epidote-schist facies rocks and is easily recognized by its unique yellow-green hue often called pistachio green.
Field identification & locations
Found worldwide in metamorphic and hydrothermal environments, particularly in Austria, Pakistan, and the USA; identified by its characteristic color and cleavage.
More like this
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