Unakite

Unakite properties at a glance

Geology & background

Forms through metamorphism of granite, where original minerals are altered to epidote (green) and orthoclase feldspar (pink).

Discovered in the Unakas region of the United States and became popular for decorative uses in the 20th century.

How to identify Unakite

• Check whether the specimen's color and texture match typical Unakite examples.
• Photograph a fresh surface in natural light and avoid shadows, glare, or wet surfaces.
• Use hardness, streak, luster, grain size, and locality together; no single trait is enough for every specimen.

Where Unakite is found

Unakite is reported from multiple localities or geological settings. Exact locality should be verified from specimen provenance, maps, or field notes.

How much is Unakite worth?

Value depends on size, condition, color, crystal quality, locality, rarity, preparation, and provenance. Treat this as educational guidance, not an appraisal.

Common uses

• Jewelry
• Decorative objects
• Building stone

Interesting facts

• Named after the Unaka Mountains on the Tennessee/North Carolina border
• Popular for tumbled stones and cabochons
• Sometimes called 'epidotized granite'

Care & safety

Treat Unakite as a collector specimen unless hardness, cleavage, and fracture are confirmed.

Avoid inhaling dust. Do not cut, grind, or polish unknown specimens without eye protection and a properly rated respirator.

Related rocks & minerals

Epidote Minerals Feldspar Feldspar Group Quartz Quartz Family Amphibolite Metamorphic Rocks Anthracite Metamorphic Rocks Blueschist Metamorphic Rocks