Danburite: Rough and Cut

Charcas, San Luis Potosi, Mexico

Datolite with Quartz

Dalnegorsk, Primorskij Kraj, Russia

Heulandite with Stilbite

Jalgon, Maharashtra State, India

Opal var. Hyalite

San Luis Potosi, Mexico

Smithsonite

Tsumeb Mine, Tsumeb, Namibia

Zoisite Var. Tanzanite

Merelani Mine, Lelatema Mountains, Arusha Region, Tanzania