Calcite

Acanthite, Calcite & Quartz

available

Las Chispas Mine, Arizpe, Sonora, Mexico

$1,250

Calcite

available

Red Dome Mine, Chillagoe, Queensland, Australia

$750

Acanthite & Calcite

available

Las Chispas Mine, Arizpe, Sonora, Mexico

$135

Acanthite & Calcite

available

Las Chispas Mine, Arizpe, Sonora, Mexico

$140

Cobaltoan Calcite

available

Bou Azzer District, Tazenakht, Ouarzazte Province, Morocco

$90

Calcite, Sphalerite & Dolomite

available

Gordonsville Mine, Carthage, Smith County, Tennessee, USA

$150

Quartz ps. Calcite

available

Black Knife group, Cuchillo Negro Mining District, Sierra Cuchillo, Sierra County, New Mexico, USA

$170

Chalcopyrite, Galena & Calcite

available

Naica Mine, Saucillo Municipality, Chihuahua, Mexico

$100

Barite & Calcite

available

Meikle Mine, Goldstrike Mines, Bootstrap Mining District, Elko County, Nevada, USA

$700

Mimetite, Calcite & Rosasite

available

Tsumeb Mine, Tsumeb, Oshikoto Region, Namibia

$325

Silver & Calcite

available

El Bonanza Mine, Port Radium District, Great Bear Lake, North Slave Region, Northwest Territories, Canada

$400