Sphalerite on Quartz Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China |
Smithsonite Tsumeb Mine, Tsumeb, Namibia |
Tourmaline var. Uvite with Magnesite and Quartz Brumado, Bahia, Northeast Region, Brazil |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Danburite rough and cut San Luis Potosi, Mexico |
Opal (rough and cut) Shoa Province, Ethiopia |