Unakite

Physical Properties

Hardness: 6-7 Mohs; Color: Mottled green, pink, and gray/white; Luster: Vitreous to dull; Crystal structure: Monoclinic/Trigonal mix; Cleavage: Poor; Specific Gravity: 2.85-3.2

Formation & Geological History

Formed through the hydrothermal metamorphism of granite, where plagioclase feldspar is replaced by green epidote. It is commonly found in Proterozoic era rock formations.

Uses & Applications

Used primarily as a semi-precious gemstone for jewelry, cabochons, beads, architectural trim, and decorative carvings.

Geological Facts

It was first discovered in the Unaka Range of North Carolina, USA, which is where it gets its name. It is also often found as pebbles in glacial drift around the Great Lakes.

Field Identification & Locations

Identify by its distinctive pistachio-green and salmon-pink 'meat and greens' mottled appearance. Commonly found in river beds and Blue Ridge Mountain regions.

Identified on: 5/16/2026

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