Danburite rough and cut San Luis Potosi, Mexico |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Opal (polished) Jalisco, Mexico |
Quartz "Faden" Dara Ismael Khan District, Waziristan, Pakistan |
Sphalerite on Quartz Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China |