Dioptase Altyn-Tyube, Karagandy Oblast, Kazakhstan |
Danburite rough and cut San Luis Potosi, Mexico |
Olmiite on Calcite N Chwanning II Mine, Kuruman, Republic of South Africa |
Beryl var. Aquamarine (etched) Itatia Mine, Minas Gerais, Brazil |
Zoisite Var. Tanzanite Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |