Specimens

Osceola Mine, Houghton Co., Michigan, USA

Copper, Prehnite

Hunan, China

Fluorite, Calcite

Cumberland, England

Hematite, Quartz

Shinkolobwe, Katanga, Congo (DRC)

Bornite, Renierite

Guererro, Mexico

Quartz

Spruce Claim, King Co., Washington, USA

Pyrite, Quartz

Taquarel, Minas Gerais, Brazil

Quartz

Tsumeb, Namibia

Smithsonite

McBride, British Columbia, Canada

Calcite

Espanola, Ontario, Canada

Cobaltite

Lake Jaco, Chihuahua, Mexico

Grossular

Merelani Hills, Arusha, Tanzania

Grossular

Merelani Hills, Arusha, Tanzania

Prehnite

Merelani Hills, Arusha, Tanzania

Graphite, Grossular, Diopside

Mwajanga, near Komolo, Tanzania

Dravite, Albite

Mina Oujela, Mapimi, Durango, Mexico

Aurichalcite, Hemimorphite

Frizington, Cumberland, England

Merelani Hills, Arusha, Tanzania

Graphite, Grossular

Oppu Mine, Amori, honshu, Japan

Pyrite, Quartz

Quincy Mine, Houghton Co., Michigan, USA

Copper

American Tunnel, Silverton, Colorado, USA

Rhodochrosite, Quartz

Los Lamentos, Chihuahua, Mexico

Wulfenite

Merelani Hills, Arusha, Tanzania

Prehnite

Hongquizhen Quarry, Meigu Co., Sichuan Province, China

Babingtonite, Prehnite

N'Chwanning Mine, Kuruman, South Africa

Ettringite