Danburite rough and cut San Luis Potosi, Mexico |
Zoisite Var. Tanzanite Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Spinel (rough and cut) Mogok, Sagaing District, Mandalay Division, Burma (Myanmar) |
Opal var. Hyalite San Luis Potosi, Mexico |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |