Donald K. Olson and Associates

Fluorite on Celestine White Rock Quarry, Clay Center, Ohio, USA Available | Message or comment below for more information and available material

Fluorite, Quartz, & Magnetite Huanggang Mines, Hexigten Banner, Inner Mongolia A.R., China Available | Message or comment below for more information and available material

Quartz var. Amethyst Boekenhoutshoek area, Mkobola, Nkangala District, Mpumalanga Province, South Africa Available | Message or comment below for more information and available material

Calcite on Hematite West Cumberland Iron Field, Copeland, Cumbria, England, UK Available | Message or comment below for more information and available material

Calcite on Barite Montreal Mine , Montreal, Gogebic Range, Iron Co., Wisconsin, USA Available | Message or comment below for more information and available material

Malachite & Azurite Kaokoveld Plateau, Kunene Region, Namibia Available | Message or comment below for more information and available material

Quartz (Herkimer Diamond) with Dolomite Middleville quarry, Middleville, Town of Newport, Herkimer Co., New York, USA Available | Message or comment below for more information and available material

Rhodochrosite Kalahari Manganese Fields, Northern Cape Province, South Africa Available | Message or comment below for more information and available material

Dioptase & Shattuckite Onderra Mine, Kaokoveld Plateau, Kunene Region, Namibia Available | Message or comment below for more info and available material

Hydroxylherderite & Albite Skardu District, Baltistan, Gilgit-Baltistan, Pakistan Available | Message or comment below for more info and available material

Dioptase Onderra Mine, Kaokoveld Plateau, Kunene Region, Namibia Available | Message or comment below for more info and available material

Fluorite Elmwood Mine, Carthage, Smith County, Tennessee, USA Available | Message or comment below for more info and available material

Fluorite, Huebnerite, & Quartz Sweet Home Mine, Mount Bross, Alma District, Park County, Colorado, USA Available | Message or comment below for more info and available material

Fluorite on Quartz Riemvasmaak, ZF Mgcawu District, Northern Cape Province, South Africa Available | Message or comment below for more info and available material

Dioptase on Quartz Kaokoveld Plateau, Kunene Region, Namibia Available | Message or comment below for more info and available material

Beryl var. Aquamarine & Schorl Erongo Region, Namibia Available | Message or comment below for more info and available material

Quartz var. Amethyst Las Vigas de Ramirez, Veracruz, Mexico Available | Message or comment below for more information