gemstone

Epidote in Quartz

Epidote [Ca2(Al, Fe)3(SiO4)3(OH)] in Quartz [SiO2]

Hardness of 6-7 on the Mohs scale, colors ranging from pistachio green to dark green epidote inclusions within transparent to translucent quartz, vitreous luster, no distinct cleavage in quartz, specific gravity around 2.65.

Identified August 2, 2026More gemstone →

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Physical properties

Formation & geological history

Formed through hydrothermal processes where silica-rich fluids containing calcium, aluminum, and iron crystallize into quartz and epidote within fractures or cavities in host rocks over millions of years.

Uses & applications

Commonly cut and polished into cabochons, beads, and slabs for use in jewelry such as rings, pendants, and ornamental carvings.

Geological facts

Epidote is well known for its characteristic pistachio-green color. When included inside quartz crystals, it creates striking mossy or dendritic patterns highly prized by lapidaries and crystal collectors.

Field identification & locations

Identified visually by its distinct green crystalline inclusions trapped inside a clear or milky quartz matrix. Found globally including in Pakistan, Austria, and the USA.

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