metamorphic
Unakite
Epidotized Granite
Hardness: 6-7 (Mohs); Color: Mottled green, pink, and orange; Luster: Vitreous to dull; Crystal structure: Monoclinic (Epidote) and Hexagonal (Quartz); Cleavage: Poor; Specific gravity: 2.85-3.20.
- Hardness
- 6-7 (Mohs)
- Color
- Mottled green, pink, and orange
- Luster
- Vitreous to dull
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Physical properties
Hardness: 6-7 (Mohs); Color: Mottled green, pink, and orange; Luster: Vitreous to dull; Crystal structure: Monoclinic (Epidote) and Hexagonal (Quartz); Cleavage: Poor; Specific gravity: 2.85-3.20.
Formation & geological history
Formed through the hydrothermal metamorphism of granite, where plagioclase feldspar is replaced by epidote. Found in mountainous regions, notably the Blue Ridge Mountains of Virginia, USA.
Uses & applications
Commonly used as a decorative stone, in lapidary work for cabochons and beads, and as a popular choice for carved figurines and metaphysical tools.
Geological facts
Unakite takes its name from the Unaka Range of mountains in western North Carolina and eastern Tennessee, where it was first discovered and described.
Field identification & locations
Identify by its distinctive pistachio-green and salmon-pink mottled appearance. In the field, look for pebbles in stream beds near metamorphic mountain ranges. Collectors should look for balanced color distribution.
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