Specimens

Merelani Hills, Arusha, Tanzania

Graphite, Calcite, Grossular, Diopside

Merelani Hills, Arusha, Tanzania

Graphite, Grossular

Mahenge, Morogoro, Tanzania

Spinel

Sunnyside Mine, Colorado, USA

Rhodochrosite

Pasto Bueno Mine, Ancash, Peru

Quartz, Hübnerite

Casapalca Mine, Huarochiri Province, Lima, Peru

Sphalerite

Boulder Hill Mine, Wellington, Nevada, USA

Fluorite

Shi Lu Copper Mine, Guangdong Province, China

Azurite, Malachite

Dakhla area, Western Sahara, Morocco

Dakhla area, Western Sahara, Morocco

Ruaha, near Mahenge, Morogoro, Tanzania

Spinel

Ruaha, near Mahenge, Morogoro, Tanzania

Spinel

Shengus, Skardu, Pakistan

Väyrynenite

Minas Gerais, Brazil

Rawhide Mine, Mojave Co., Arizona, USA

Wulfenite

Julcani Mine, Huancavelica, Peru

Gold, Ferberite

Wuling Mine, Jiangxi Province, China

Stibnite

Santa Eulalia, Chihuahua, Mexico

Malachite, Hemimorphite

El Hammam Mine, Meknès, Morocco

Fluorite, Quartz

Xianghuapu Mine, Hunan, China

Fluorite

San Jose Mine, Oruro, Bolivia

Teallite

Yaogangxian Mine, Hunan, China

Quartz

Siglo XX Mine, Llallagua, Bolivia

Vivianite, Quartz

San Antonio Mine, Santa Eulalia, Chihuahua, Mexico

Smithsonite

Santa Eulalia, Chihuahua, Mexico

Creedite