Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |
Danburite rough and cut San Luis Potosi, Mexico |
Zoisite Var. Tanzanite Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Opal var. Hyalite San Luis Potosi, Mexico |
Quartz "Faden" Dara Ismael Khan District, Waziristan, Pakistan |