metamorphic

Unakite

Altered Granite (Granitic Metamorphic Rock)

AI-generated identification · may be incorrect

Hardness: 6-7 on the Mohs scale; Color: Mottled green, pink, and white; Luster: Vitreous to dull; Crystal structure: Massive/granular aggregate; Cleavage: None distinct; Specific gravity: 2.5-3.0.

Hardness: 6-7 on the Mohs scale
Color: Mottled green, pink, and white
Luster: Vitreous to dull

Identified August 1, 2026More metamorphic →

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Physical properties

Hardness: 6-7 on the Mohs scale; Color: Mottled green, pink, and white; Luster: Vitreous to dull; Crystal structure: Massive/granular aggregate; Cleavage: None distinct; Specific gravity: 2.5-3.0.

Formation & geological history

Formed through the hydrothermal alteration (epidotization) of granite, where plagioclase feldspar is replaced by epidote, typically occurring in ancient geological orogenic belts.

Uses & applications

Used primarily in lapidary work, carved decorative objects, cabochons for jewelry, and as a collectible tumbled stone.

Geological facts

Unakite was first discovered in the Unaka Mountains of western North Carolina, from which it derives its name. It is a composite rock consisting mainly of pink orthoclase feldspar, green epidote, and colorless quartz.

Field identification & locations

Easily identified by its distinctive pink and green coloration. Common localities include the United States (North Carolina, Virginia), South Africa, Brazil, and China.