Acanthite

Imiter, Atlas Mountains, Morocco

Adamite on Limonite

Ojuela Mine, Mapimi, Durango, Mexico

Heulandite with Stilbite

Jalgon, Maharashtra State, India

Olmiite

N Chwanning II Mine, Kuruman, Republic of South Africa

Corundum Var. Sapphire

Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka

Tourmaline var. Uvite with Magnesite and Quartz

Brumado, Bahia, Northeast Region, Brazil