Dioptase Altyn-Tyube, Karagandy Oblast, Kazakhstan |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Danburite rough and cut San Luis Potosi, Mexico |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Sphalerite on Quartz Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China |