Quartz var. Faden Dara Ismael Khan District, Waziristan, Pakistan |
Quartz "Faden" Dara Ismael Khan District, Waziristan, Pakistan |
Sphalerite on Quartz Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China |
Opal var. Hyalite San Luis Potosi, Mexico |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Danburite rough and cut San Luis Potosi, Mexico |