metamorphic

Unakite

Unakite (Metamorphosed granite)

AI-generated identification · may be incorrect

Hardness: 6-7 (Mohs scale); Color: Mottled green and pink/orange; Luster: Vitreous to dull; Crystal Structure: Monoclinic/Triclinic; Cleavage: None/Irregular; Specific Gravity: 2.85-3.00

Hardness: 6-7 (Mohs scale)
Color: Mottled green and pink/orange
Luster: Vitreous to dull

Identified June 1, 2026More metamorphic →

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Physical properties

Hardness: 6-7 (Mohs scale); Color: Mottled green and pink/orange; Luster: Vitreous to dull; Crystal Structure: Monoclinic/Triclinic; Cleavage: None/Irregular; Specific Gravity: 2.85-3.00

Formation & geological history

Formed through hydrothermal metamorphism of granite where plagioclase feldspar is replaced by epidote. Usually associated with the Precambrian-Proterozoic era.

Uses & applications

Used primarily as a semi-precious gemstone for jewelry (cabochons, beads), decorative carvings, architectural stone, and as a popular lapidary material.

Geological facts

Named after the Unaka Range in North Carolina, USA, where it was first discovered. It is the state rock of Virginia.

Field identification & locations

Identifiable by its unique 'Christmas-like' combination of pistachio green epidote and salmon-pink orthoclase feldspar. Common in river beds and shorelines in the Blue Ridge Mountains and Lake Superior.