mineral
Epidote in Quartz
Ca2(Al,Fe)3(SiO4)3(OH) and SiO2
AI-generated identification · may be incorrectHardness of 6-7, pistachio-green to dark green epidote crystals embedded in white or clear quartz, vitreous luster, monoclinic crystal system for epidote.
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Physical properties
Hardness of 6-7, pistachio-green to dark green epidote crystals embedded in white or clear quartz, vitreous luster, monoclinic crystal system for epidote.
Formation & geological history
Formed through hydrothermal alteration and regional metamorphism in veins, pegmatites, and fractured rock formations over millions of years.
Uses & applications
Popular specimen for mineral collectors, lapidary arts, and sometimes carved into ornamental objects or beads.
Geological facts
Epidote gets its name from the Greek word for 'increase', referring to the base of its crystal face being longer than the other. Fine crystals are prized in hydrothermal vein deposits.
Field identification & locations
Identify by the distinct pistachio-green color contrasting against white quartz matrix. Found globally in alpine clefts, metamorphic terranes, and hydrothermal veins.
