metamorphic

Unakite

Epidote–orthoclase–quartz granite (unakite)

AI-generated identification · may be incorrect

Coarse-grained, mottled salmon-pink and green rock with a dull to vitreous luster; composed mainly of pink potassium feldspar, green epidote, and quartz. Hardness is about 6–7 Mohs; crystals are intergrown, so cleavage is not usually obvious in a small specimen.

Identified October 6, 2026More metamorphic →

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Physical properties

Formation & geological history

Formed when granite underwent hydrothermal alteration, converting some feldspar to green epidote; the exact age depends on its source locality. Commonly associated with metamorphosed or altered granitic rocks.

Uses & applications

Used for polished cabochons, beads, carvings, and decorative stone; also collected as a colorful field specimen.

Geological facts

Unakite is named after the Unaka Mountains of the southeastern United States, where it was first described.

Field identification & locations

The distinctive pink-and-green, coarse mottling is the key field clue; it is found in parts of the Appalachians and elsewhere worldwide. The pictured specimen appears consistent with unakite, though a photo cannot confirm its mineral composition.