Unakite / Epidosite

Physical Properties

Hardness: 6-7 on Mohs scale; Color: Mottled green (epidote), pink/orange (orthoclase feldspar), and clear/grey (quartz); Luster: Dull to vitreous; Crystal structure: Monoclinic; Cleavage: Poor/none.

Formation & Geological History

Formed through the hydrothermal metamorphism of granitic rocks, where plagioclase feldspar is replaced by epidote. Often found as water-worn pebbles in riverbeds or glacial deposits.

Uses & Applications

Used primarily as decorative stone, architectural lapidary, cabochons for jewelry, therapy stones (metaphysical 'stone of vision'), and high-end landscaping.

Geological Facts

Unakite was first discovered in the Unaka Range of the Appalachian Mountains in North Carolina, USA. It is unique among rocks for its distinct 'Christmas' color palette of deep green and pink.

Field Identification & Locations

Identify by its unique 'pistachio green' and 'salmon pink' mottling. It is a common find in the Blue Ridge Mountains and around the Great Lakes (as glacial till). It will not react to acid and is hard enough to scratch glass.

Identified on: 4/25/2026

Mode: Standard