Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Danburite rough and cut San Luis Potosi, Mexico |
Opal: Rough and Cut Shoa Province, Ethiopia |
Smithsonite Tsumeb Mine, Tsumeb, Namibia |