Specimens

Russian River, north of Cloverdale, Mendocino Co., California, USA

Datolite

Russian River, north of Cloverdale, Mendocino Co., California, USA

Datolite

Russian River, north of Cloverdale, Mendocino Co., California, USA

Datolite

Russian River, north of Cloverdale, Mendocino Co., California, USA

Datolite

Russian River, north of Cloverdale, Mendocino Co., California, USA

Datolite

Russian River, north of Cloverdale, Mendocino Co., California, USA

Datolite

Russian River, north of Cloverdale, Mendocino Co., California, USA

Datolite

Champion Mine, Mono Co., California, USA

Svanbergite

Laytonville Quarry, Mendocino Co., California, USA

Deerite

Laytonville Quarry, Mendocino Co., California, USA

Deerite

Merelani Hills, Arusha, Tanzania

Grossular

Merelani Hills, Arusha, Tanzania

Grossular

Merelani Hills, Arusha, Tanzania

Grossular

Merelani Hills, Arusha, Tanzania

Grossular

Merelani Hills, Arusha, Tanzania

Grossular

Merelani Hills, Arusha, Tanzania

Grossular

Los Picachos, near Picacho Peak, San Benito Co., California, USA

Los Picachos, near Picacho Peak, San Benito Co., California, USA

Los Picachos, near Picacho Peak, San Benito Co., California, USA

Elura Mine, Cobar, NSW, Australia

Silver

Elura Mine, Cobar, NSW, Australia

Silver

Elura Mine, Cobar, NSW, Australia

Silver

Kolwezi Mining District, Lualaba, DR Congo

Arsenopyrite, Calcite, Kolwezite

Bahia, Brazil

Hematite, Quartz

Himalaya Mine, Mesa Grande, San Diego Co., California, USA

Quartz