Adamite on Limonite

Ojuela Mine, Mapimi, Durango, Mexico

Beryl var. Aquamarine (etched)

Itatia Mine, Minas Gerais, Brazil

Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Olmiite on matrix

N Chwanning II Mine, Kuruman, Republic of South Africa

Corundum Var. Sapphire

Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka

Sphalerite on Quartz

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