Specimens

Russian River, near Cloverdale, California

Datolite

Russian River, near Cloverdale, California

Datolite

Russian River, near Cloverdale, California

Datolite

Russian River, near Cloverdale, California

Datolite

Russian River, near Cloverdale, California

Datolite

Crystal Park, Beaverhead Co., Montana

Quartz

Mina Ojuela, Mapimi, Durango, Mexico

Legrandite

Milpillas, Cananea Dist., Sonora, Mexico

Azurite, Malachite

Leonard Mine, Butte, Silverbowe Co., Montana

Covellite

Leonard Mine, Butte, Silverbowe Co., Montana

Covellite

Leonard Mine, Butte, Silverbowe Co., Montana

Covellite

Mina Ojuela, Mapimi, Durango, Mexico

Adamite

Majuba Hill Mine, Pershing Co., Nevada

Clinoclase

Elmwood Mine, Carthage, Tennessee

Fluorite

Jeffrey Mine, Asbestos, Quebec, Canada

Grossular, Diopside

near Fallon, Churchill Co., Nevada

Stibnite, Quartz

Reward Mine, Inyo Co., California

Perite, Caledonite

Los Lamentos, Chihuahua, Mexico

Wulfenite

Red Cloud Mine, Trigo Mtns., La Paz Co., Arizona

Wulfenite

Red Cloud Mine, Trigo Mtns., La Paz Co., Arizona

Wulfenite

Milpillas, Cananea Dist., Sonora, Mexico

Azurite

Taxco, Guerrero, Mexico

Marcasite, Calcite

Level 5, Mina Ojuela, Mapimi, Durango, Mexico

Calcite, Conichalcite

Mina Veronica, Copelito, Zacatecas, Mexico

Topaz

Kunar Prov., Afghanistan

Elbaite