metamorphic
Unakite
Epidotized Granite
Hardness: 6-7 (Mohs); Color: Mottled green (epidote) and pink (orthoclase) with clear quartz; Luster: Vitreous to dull; Crystal structure: Monoclinic/Triclinic; Specific gravity: 2.85-3.20.
- Hardness
- 6-7 (Mohs)
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 (Mohs); Color: Mottled green (epidote) and pink (orthoclase) with clear quartz; Luster: Vitreous to dull; Crystal structure: Monoclinic/Triclinic; Specific gravity: 2.85-3.20.
Formation & geological history
Formed through hydrothermal metamorphism of granite where plagioclase feldspar is replaced by epidote. Usually associated with the Precambrian period onwards.
Uses & applications
Used as a semi-precious gemstone for cabochons, beads, decorative carvings, and architectural accents. Also popular in metaphysical circles.
Geological facts
Named after the Unaka Range of mountains in North Carolina, USA, where it was first discovered. It is often considered a stone of vision and balancing emotions.
Field identification & locations
Identified by its distinctive salmon-pink and pistachio-green mottled appearance. Found in riverbeds as pebbles (like this specimen) throughout the Blue Ridge Mountains, USA, and South Africa.
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