Unakite is a pink and green metamorphic rock composed of pink orthoclase, green epidote, and colorless to milky quartz. These colors have helped Unakite become a popular lapidary material.

Unakite forms when granite is altered by hydrothermal fluids, and plagioclase in the granite is transformed into epidote. Unakite is used as a construction material, an architectural stone, a lapidary rough, and a gem material.