Tanzanite
The New York jeweller Tiffany made it famous: the purple coloured Tanzanite.
Only in 1967 the first transparent, between purple-bluish and lilac coloured Tanzanite was found in the North of Tanzania.
The New York jeweller Tiffany made the Tanzanite world famous and named it after its origin country Tanzanite.
The Tanzanite is a blue variety of the grey-greenish mineral Zoisite.