Acanthite

Imiter, Atlas Mountains, Morocco

Datolite with Quartz

Dalnegorsk, Primorskij Kraj, Russia

Opal var. Hyalite

San Luis Potosi, Mexico

Corundum Var. Sapphire

Balangoda, near Ratnapura, Sabaragamuwa Province, Sri Lanka

Stilbite

Jalgaon, India

Wulfenite

Wulfenite from Villa Ahumada, Sierra de Los Lamentos, Chihuahua, Mexico