metamorphic
Unakite
Altered granitic rock composed of pink orthoclase feldspar, green epidote, and quartz
AI-generated identification · may be incorrectMohs hardness of 6 to 7, distinctive mottled pink and green coloration, vitreous to dull luster, and massive crystal habit with no distinct cleavage.
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Physical properties
Mohs hardness of 6 to 7, distinctive mottled pink and green coloration, vitreous to dull luster, and massive crystal habit with no distinct cleavage.
Formation & geological history
Formed by hydrothermal alteration and metamorphism of granite, where plagioclase feldspar is replaced by epidote.
Uses & applications
Used primarily as an ornamental stone for cabochons, beads, carved spheres, and architectural lapidary work.
Geological facts
First discovered in the Unaka Mountains of North Carolina, from which it derives its name.
Field identification & locations
Easily identified by its unique blotchy mix of pink feldspar and green epidote, commonly sourced from the US, South Africa, and Brazil.
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