Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Opal (polished) Jalisco, Mexico |
Tourmaline var. Uvite with Magnesite and Quartz Brumado, Bahia, Northeast Region, Brazil |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |