
metamorphic
Epitote or Epidote-rich rock
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 yellowish-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 yellowish-green color, vitreous luster, and monoclinic crystal system.
Formation & geological history
Formed through regional or contact metamorphism of low to medium grade, typically altering calcium-rich igneous and sedimentary rocks.
Uses & applications
Primarily collected as mineral specimens or used as a minor decorative stone in cabochons and carvings.
Geological facts
Epidote derives its name from the Greek word for 'increase', referencing the base of its crystal prism being longer than the other. It is a common indicator mineral in metamorphic petrology.
Field identification & locations
Easily identifiable by its characteristic pistachio-green color and columnar crystal habits. Found globally in hydrothermal veins, Alpine fissures, and skarns.
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