Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |
Olmiite on Calcite N Chwanning II Mine, Kuruman, Republic of South Africa |
Tourmaline Var. Elbaite Kunar Province, Afganistan |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Danburite rough and cut San Luis Potosi, Mexico |
Sphalerite on Quartz Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China |