Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Olmiite on matrix N Chwanning II Mine, Kuruman, Republic of South Africa |
Opal: Rough and Cut Shoa Province, Ethiopia |
Smithsonite Tsumeb Mine, Tsumeb, Namibia |
Opal var. Hyalite San Luis Potosi, Mexico |