Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Tourmaline var. Uvite with Magnesite and Quartz Brumado, Bahia, Northeast Region, Brazil |
Opal (polished) Jalisco, Mexico |
Danburite rough and cut San Luis Potosi, Mexico |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |