Specimens

Amelia Mine, Santa Rosalia, Baja Sur, Mexico

McEarl Mine, Garland Co., Arkansas, USA

Quartz

Keweenaw Peninsula, Michigan, USA

Copper, Calcite

Merelani Hills, Arusha, Tanzania

Prehnite

Merelani Hills, Arusha, Tanzania

Prehnite

Merelani Hills, Arusha, Tanzania

Prehnite

Kamoya South Mine, Kambove, Katanga, Congo

Carrollite

Panasquiera, Portugal

Mina Oujela, Mapimi, Durango, Mexico

Wulfenite

China

Dolomite, Quartz

Pamplona, Spain

Dolomite

Majuba Hill Mine, Pershing Co., Nevada, USA

Clinoclase

Berry Materials Quarry, North Vernon, Indiana, USA

Calcite

Pinto River, Chocó Department, Colombia

Platinum

Orange River, Karas River, Namibia

Quartz

Kertch, Crimea, Ukraine

Rhodochrosite

Milpillas Mine, Cuitaca, Sonora, Mexico

Azurite

Nani, Loliondo, Tanzania

Kyanite

Keweenaw Peninsula, Michigan, USA

Copper, Prehnite

Palm Wash Mine, Borrego Hot Springs, California, USA

Arkansas, USA

Wavellite

Copper, Keweenaw Peninsula, Michigan, USA

Calcite

Carson Hill Gold Mine, Calaveras Co., California, USA

Ankerite, Quartz

Fresnillo, Zacatecas, Mexico

Marcasite, Quartz

Huancavelica, Peru

Quartz