Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Opal (polished) Jalisco, Mexico |
Opal: Rough and Cut Shoa Province, Ethiopia |
Corundum Var. Sapphire Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka |
Dioptase Altyn-Tyube, Karagandy Oblast, Kazakhstan |
Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |