metamorphic
Unakite
Altered granitic rock (Epidote, Orthoclase Feldspar, Quartz)
AI-generated identification · may be incorrectHardness of 6-7 on Mohs scale. Distinctive mottled green, pink, and white colors with vitreous to waxy luster.
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Physical properties
Hardness of 6-7 on Mohs scale. Distinctive mottled green, pink, and white colors with vitreous to waxy luster.
Formation & geological history
Formed through hydrothermal alteration of granite, where plagioclase feldspar is replaced by epidote.
Uses & applications
Commonly used for lapidary work, cabochons, carved decorative objects, and tumbling.
Geological facts
First discovered in the Unaka Mountains of North Carolina, from which it derives its name.
Field identification & locations
Easily identified by the striking combination of green epidote and pink orthoclase feldspar.
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