This cabochon of Ruby in Zoisite is a beautiful green with deep colored rubies. Ruby Zoisite is the natural combination of both ruby and zoisite crystals in a single specimen. Other name variations include "ruby-in-zoisite" and "Tanganyika artstone". Ruby-zoisite was discovered at the Longido mining district in northeast Tanzania. To this day, Tanzania remains the only source for ruby-zoisite. Blevins had initially thought that he had found vast ruby deposits in 1949, but it later turned out to be a green zoisite matrix with large inclusions of mostly opaque ruby. Ruby-zoisite is also heavily included with black hornblende minerals. Depending on its primary constituents, ruby-in-zoisite can vary tremendously in color, pattern and hardness.
Flat polished beveled back