Tanzanite crystal, Tanzania, Africa. This natural tanzanite crystal is a beautiful violet color. This thumbnail crystal measures approx 1/2″ in height.
Tanzanite is the blue and violet variety of the mineral zoisite, caused by small amounts of vanadium. Tanzanite belongs to the epidote mineral group. Tanzanite is only found in Simanjiro District of Manyara Region in Tanzania, in a very small mining area near the Mererani Hills.