Diopside Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania |
Opal var. Hyalite San Luis Potosi, Mexico |
Tourmaline Var. Elbaite Kunar Province, Afganistan |
Olmiite on Calcite N Chwanning II Mine, Kuruman, Republic of South Africa |
Opal (polished) Jalisco, Mexico |
Tourmaline var. Uvite with Magnesite and Quartz Brumado, Bahia, Northeast Region, Brazil |