Acanthite

Imiter, Atlas Mountains, Morocco

Danburite rough and cut

San Luis Potosi, Mexico

Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Olmiite on Calcite

N Chwanning II Mine, Kuruman, Republic of South Africa

Opal (polished)

Jalisco, Mexico

Quartz Var. Rose

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