Corundum var. Sapphire

Potanino Mine, Ilmen Mountains, Russia

Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Olmiite on Calcite

N Chwanning II Mine, Kuruman, Republic of South Africa

Opal (rough and cut)

Shoa Province, Ethiopia

Quartz Var. Rose

Lavra da Ilha Pegmatite, Taquaral, Itinga, Aracuai, Minas Gerais, Brazil

Smithsonite

Tsumeb Mine, Tsumeb, Namibia