Olmiite on matrix

N Chwanning II Mine, Kuruman, Republic of South Africa

Sphalerite on Quartz

Shuikoushan Lead/Zinc Mine, Chaling, Hunan Province, China

Heulandite with Stilbite

Jalgon, Maharashtra State, India

Quartz Var. Rose

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

Danburite rough and cut

San Luis Potosi, Mexico

Corundum var. Sapphire

Potanino Mine, Ilmen Mountains, Russia