Specimens

Searles Lake, San Bernardino Co., California, USA

Nahcolite

Shalman, Khyber Agency, Pakistan

Vesuvianite

Kuruktag Mountains, Xinjiang Uygur Region, China

Wulfenite

Morenci Mine, Greenlee Co., Arizona, USA

Azurite, Malachite

Santa Rosa Mine, Minas Gerais, Brazil

Cornwall, England

Calcite

Mindouli, Congo

Dioptase, Quartz

Silicon Valley, California, USA

Silicon

Cobalt, Ontario, Canada

Silver, Safflorite

Gem Mine, San Benito Co., California

Benitoite, Neptunite

various

Afghanistan

Corundum

various

Dundas, Tasmania

Crocoite

various

San Martin mine, Sombrerete, Zacatecas, Mexico

Silver, Bornite

Quartzite, Arizona, USA

Pyrite, Goethite

unknown

Frizington, Cumberland, England

Hematite, Calcite

Prospect Park, New Jersey, USA

Stilbite-Ca

Dahkla, Morocco

Crystal Tips Mine, Perterson Mountain, Nevada, USA

Quartz

Alet District, Xinjiang Autonomous Region, China

Sunnyside Mine, Silverton, Colorado, USA

Fluorite

France and New Mexico

Fluorite