With proper care to avoid hard blows, tanzanite can be worn in all styles of jewelry. - Courtesy Tanzanite Foundation ™ Hardness and toughness ... The steps between the minerals are not evenly spaced.
Tanzanite can have an intense and deep violetish blue color. Tanzanite is the violet blue to blue violet variety of the mineral zoisite. It is mined commercially only in one area of the world: the ...