Tourmaline and Opal

Calcite VAR Cobaltian

Oumlil, Bou Azzer, Morocco

Danburite

San Luis Potosi, Mexico

Opal var. crystalline

Jalisco, Mexico

Opal

Shoa Province, Ethiopia

Prehnite with Apophyllite

O & G Quarry, Southbury, Connecticut

Topaz var. Imperial

Ouro Preto, Minas Gerais, Brazil

Tourmaline VAR Elbaite

Urubu Mine, Aruscuai, Minas Gerais, Brazil

Tourmaline VAR Elbaite

Darra-i-Pech, Nangerhar Province, Afganistan

Tourmaline Var Elbaite

"Washington D.C. pocket," Cruzeiro Mine, San Jose Da Safira, Minas Gerais, Brazil

Tourmaline Var Elbaite, with Quartz and Lepidolite

Pederneira Mine, Sao Jose Da Safira, Minas Gerais, Brazil