metamorphic
Unakite
Altered Granite (Epidote, Orthoclase Feldspar, and Quartz)
AI-generated identification · may be incorrectHardness of 6-7 on the Mohs scale, mottled green and pink coloration, vitreous luster, and a compact granular crystal structure.
Identified More metamorphic →
Explore Unakite in the encyclopedia →Identify your own rocks.
Get a report just like this from any photo, free.
Physical properties
Hardness of 6-7 on the Mohs scale, mottled green and pink coloration, vitreous luster, and a compact granular crystal structure.
Formation & geological history
Formed through hydrothermal alteration of granitic rocks, where plagioclase feldspar is replaced by epidote over geological time.
Uses & applications
Used primarily in lapidary work, carved into decorative objects, and polished for cabochons in jewelry.
Geological facts
First discovered in the Unaka Mountains of North Carolina, from which it derives its distinctive name.
Field identification & locations
Easily identified by its characteristic pink and pistachio-green mottled appearance; commonly found in glacial drift and mountain streams.
More like this
