Opal (rough and cut) Shoa Province, Ethiopia |
Opal var. Hyalite San Luis Potosi, Mexico |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Quartz var. Faden Dara Ismael Khan District, Waziristan, Pakistan |
Sphalerite on Quartz Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |