Diopside Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania |
Smithsonite Tsumeb Mine, Tsumeb, Namibia |
Opal (polished) Jalisco, Mexico |
Beryl var. Aquamarine Quy Chau District, Nghe An Province, Vietnam |
Spinel (rough and cut) Mogok, Sagaing District, Mandalay Division, Burma (Myanmar) |
Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |