Unakite

Hardness: 6-7 (Mohs scale), Color: Mottled green (epidote) and pink (orthoclase feldspar) with white/gray quartz, Luster: Vitreous to dull, Crystal Structure: Granular/massive, Specific Gravity: 2.8-3.2

Formed through hydrothermal metamorphism of granite where plagioclase feldspar is replaced by epidote. Usually associated with the Proterozoic era, approximately 1 to 1.2 billion years ago.

Commonly used as a decorative stone, in lapidary work for cabochons and beads, architectural cladding, and as an ornamental gemstone in carvings.

Unakite was first discovered in the Unaka Range of the Blue Ridge Mountains in North Carolina, USA, from which it derives its name. It is also found as pebbles in glacial till near Lake Superior.

Identify by its unique pistachio-green and salmon-pink mottled appearance. It is commonly found in riverbeds and mountainous regions in Virginia, North Carolina, and South Africa. Collectors should look for balanced color distribution.