Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Heulandite with Stilbite

Jalgon, Maharashtra State, India

Olmiite on Calcite

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

Tourmaline var. Uvite with Magnesite and Quartz

Brumado, Bahia, Northeast Region, Brazil