Diopside Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania |
Dioptase Altyn-Tyube, Karagandy Oblast, Kazakhstan |
Opal (polished) Jalisco, Mexico |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Spinel (rough and cut) Mogok, Sagaing District, Mandalay Division, Burma (Myanmar) |