Quartz Var. Rose Lavra da Ilha Pegmatite, Taquaral, Itinga, Aracuai, Minas Gerais, Brazil |
Opal var. Hyalite San Luis Potosi, Mexico |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Diopside Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania |
Tourmaline var. Uvite with Magnesite and Quartz Brumado, Bahia, Northeast Region, Brazil |
Opal: Rough and Cut Shoa Province, Ethiopia |