Olmiite on matrix N Chwanning II Mine, Kuruman, Republic of South Africa |
Opal: Rough and Cut Shoa Province, Ethiopia |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Sphalerite on Quartz Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China |