Zoisite Var. Tanzanite Arusha, Merelani, Tanzania |
Wulfenite Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico |
Diopside Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania |
Opal (rough and cut) Shoa Province, Ethiopia |
Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Olmiite on matrix N Chwanning II Mine, Kuruman, Republic of South Africa |