Gold, cuprite, and phenakite

Native Copper

Rubtsovsky Mine, Altai Krai, Siberia, Russia

Copper pseudomorph after Cuprite

Rubtsovsky Mine, Altai Krai, Siberia, Russia

Cuprite

Rubtsovsky Mine, Altai Krai, Siberia, Russia

Cuprite w/Silver

Rubtsovsky Mine, Altai Krai, Siberia, Russia

Cuprite w/Silver

Rubtsovsky Mine, Altai Krai, Siberia, Russia

Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Diopside

Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania

Fluorite

Riemvasmaak, Kakamas Dist. Northern Cape Prov., South Africa

Gold with Quartz

Star of the West Mine, Central City, Gilpin Co., Colorado

Gold

Kittitas Co., Washington

Gold

Sacramento River, Redding, California

Gold w/ Arsenopyrite

Diltz Mine, Bear Valley, Whitlock District, Maricopa County, California

Gold

Round Mountain Mine, Nye Co., Nevada

Gold with Quartz

Dahlonega, Georgia

gold

Near Santa Elena, Venezuela

Gold

Near Santa Elena, Venezuela

Opal (rough and cut)

Shoa Province, Ethiopia

$275

Opal (rough and cut)

Shoa Province, Ethiopia

Phenakite

Sao Miguel de Piracicaba, Minas Gerais, Brazil

Phenakite

Anjanabonoina Pegmatites, Antananarivo Province, Madagascar

Rhodochrosite on matrix

Santa Eulalia, Chihuahua, Mexico

Ruby in Muscovite

Chhumar Mines, Ganesh Himal, Nepal

Silver on Acanthite

Himmelsfurst Mine, Bucholz, Erzgebirge, Saxony, Germany

Garnet Var. Spessartine

Loliondo, near Serengeti National Park, Tanzania