Tourmaline var. Uvite with Magnesite and Quartz Brumado, Bahia, Northeast Region, Brazil |
Olmiite on matrix N Chwanning II Mine, Kuruman, Republic of South Africa |
Zoisite Var. Tanzanite Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania |
Beryl var. Aquamarine (etched) Itatia Mine, Minas Gerais, Brazil |
Danburite rough and cut San Luis Potosi, Mexico |
Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |