metamorphic
Unakite
Altered Granite (Epidote, Orthoclase Feldspar, Quartz)
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, characterized by distinct mottled green and pink colors with a vitreous to greasy luster.
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Physical properties
Hardness of 6-7 on the Mohs scale, characterized by distinct mottled green and pink colors with a vitreous to greasy luster.
Formation & geological history
Formed through hydrothermal alteration of granite, where plagioclase feldspar is replaced by epidote.
Uses & applications
Frequently tumbled into polished stones, carved into ornamental objects, and used in jewelry making.
Geological facts
First discovered in the Unaka Mountains of North Carolina, from which it derives its name.
Field identification & locations
Easily identified by its characteristic pink feldspar and green epidote mix; commonly found in glacial drift and mountainous regions.
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