Unakite | Gemopedia. Unakite is a type of granitic rock that features mottled patterns of green epidote, white to gray quartz, and pink feldspar, occasionally with black veining.This compact, hard gem is most often seen as cabochon gems, carvings and beads or sold as tumbled rough.nakite | Gemopedia. Unakite is a type of granitic rock that features mottled patterns of green epidote, white to gray quartz, and pink feldspar, occasionally with black veining.