mineral general info

Ex. Kevin Brown collection

Origin: Manuelita Mine, Morococha Dist., Junin Dept., Peru

Sample size: 7.0 x 5.3 x 3.2 cm (top), 8.1 x 3.8 x 3.0 cm (2nd row), 8.3 x 6.7 x 2.3 cm (3rd row), 9.0 x 7.2 x 3.5 cm (4th row), 4.7 x 3.2 x 2.8 cm (bottom)

Rhodochrosite with quartz

Origin: Sunnyside Mine, San Juan County, Colorado, U.S.A.

Sample size: 6.1 x 4.8 x 2.3 cm (top), 2 x 2 x 2 cm (bottom)

Origin: Lima Department, Peru

Sample size: 12.2 x 6.1 x 4.5 cm

Rhodochrosite with quartz

Origin: Uchucchacua Mine, Lima Dept., Peru

Sample size: 8.1 x 5.1 x 3.6 cm (top), 10.4 x 6.4 x 5.5 cm (2nd row), 7.8 x 7.8 x 7.3 cm (bottom)

Origin: Moose Mine, Central City, Gilpin Co., Colorado, U.S.A.

Sample size: 7.5 x 3.8 x 2.5 cm

Rhodochrosite on pyrite

Origin: Champion Mine, Lake City, Hinsdale Co., Colorado, U.S.A.

Sample size: 8.9 x 7.0 x 3.5 cm

Origin: N'chwaning Mine, nr. Kuruman, Cape Province, South Africa

Sample size: 3.3 x 2.2 x 1.9 cm

Rhodochrosite on quartz

Origin: Keystone #1 Mine, Coquihalla Pass, British Columbia, Canada

Sample size: 8.0 x 6.0 x 5.0 cm

Rhodochrosite with quartz and sphalerite

Origin: Batantzi Mine, Madan District, Southern Rhodope Mountains, Bulgaria

Sample size: 10.3 x 9.6 x 5.4 cm

Rhodochrosite with minor pyrite and quartz

Origin: Four Ball Pocket, Sweet Home Mine, Alma, Park Co., Colorado, U.S.A.

Sample size: 2.8 x 2.4 x 2.4 cm

Rhodochrosite with minor quartz and pyrite on tetrahedrite

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 4.9 x 3.5 x 1.9 cm (top), 1.5 x 1 x 0.8 cm (bottom)

Rhodochrosite pseudomorph after barite

Origin: Manuelita Mine, Morococha District, Peru

Sample size: 14.9 x 14.0 x 5.5 cm

Origin: Casapalca, Peru

Sample size: 4.8 x 3.2 x 0.25 cm

Origin: Nchwaning Mine, Kalahari Manganese Field, South Africa

Sample size: 5.2 x 4.5 x 2.8 cm

Origin: Catamarca Province, Argentina

Sample size: 6.4 x 3.1 x 1.5 cm

Origin: Uchucchacqua Mine, Lima Dept, Peru

Sample size: 6.5 x 6.5 x 4.5 cm (top), 4.5 x 3.2 x 1.8 cm (bottom)

Origin: Potosi Mine, Chihuahua, Mexico

Sample size: 6 x 5.8 x 2.8 cm

Rhodochrosite on quartz

Origin: Hedgehog Pocket, Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 4 x 3.5 x 2.5 cm

Origin: Santa Eulalia, Chihuahua, Mexico

Sample size: 5 x 4.5 x 2.5 cm

Origin: Pachapaqui Mine, Ancash Dept, Peru

Sample size: 5 x 4 x 1.8 cm

Origin: Hotazel, Cape Province, South Africa

Sample size: 2 x 1.5 x 1 cm

Rhodochrosite on ilvaite

Origin: Level 5, Los Remedios Mine, Taxco, Guerrero, Mexico

Sample size: 7.8 x 5.3 x 1.6 cm

Origin: Hotazel Mine, Kalahari, South Africa

Sample size: 8 x 7 x 5 cm

Origin: Sunnyside Mine, San Juan Co, Colorado, U.S.A.

Sample size: 6.2 x 4.3 x 1.6 cm

Origin: Balhash, Kazakhstan

Sample size: 2.2 x 2.1 x 1.5 cm

Origin: Santa Eulalia District, Chihuahua, Mexico

Sample size: 1.5 x 1.2 x 1.1 cm

Rhodochrosite with quartz

Origin: Sunnyside Mine, San Juan Co, Colorado, U.S.A.

Sample size: 7.5 x 5.5 x 3.2 cm

Origin: Aguiles Serdan, Chihuahua, Mexico

Sample size: 7.5 x 3.8 x 0.7 cm

Origin: Capillitas Mine, Catamarca Province, Argentina

Sample size: 5.8 x 2.3 x 1.5 cm

Origin: Mt. St. Hilaire. Quebec, Canada

Sample size: 3 x 2.5 x 1.8 cm

Origin: American Tunnel Mine, Silverton, Colorado, U.S.A.

Sample size: 5.5 x 3.75 x 2.5 cm

Origin: Wessels Mine, Northern Cape Province, South Africa

Sample size: 10.2 x 7.4 x 3.6 cm

Origin: N'chwaning I mine, Northern Cape Province, South Africa

Sample size: 2.6 x 1.4 x 1.3 cm

Origin: Uchucchacua Mine, Lima Dept., Peru

Sample size: 10.1 x 7.8 x 3.4 cm (top), 2.2 x 2.2 x 2.1 cm (bottom)

Rhodochrosite pseudomorph after barite

Origin: Morococha District, Lima Department, Peru

Sample size: 10.9 x 5.8 x 3.5 cm

Origin: Emma Mine, Butte, Silver Bow Co., Montana, U.S.A.

Sample size: 5.3 x 4.7 x 1.5 cm

Rhodochrosite on quartz

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 3.1 x 2.5 x 2 cm

Origin: Uchucchachua Mine, Lima Dept., Peru

Sample size: 7.5 x 4.0 x 3.0 cm

Rhodochrosite with quartz

Origin: Uchucchachua Mine, Lima Dept., Peru

Sample size: 4.9 x 4.9 x 3.4 cm

Origin: Sunnyside Mine, San Juan Co, Colorado, U.S.A.

Sample size: 7.5 x 5 x 2.5 cm

Rhodochrosite on quartz

Origin: Sunnyside Mine, San Juan Co, Colorado, U.S.A.

Sample size: 7 x 5.2 x 2.8 cm

Rhodochrosite with tetrahedrite

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 3.8 x 3 x 2.4 cm

Rhodochrosite with quartz

Origin: Sunnyside Mine, San Juan Co, Colorado, U.S.A.

Sample size: 10 x 5.2 x 3 cm

Origin: Uchucchachua Mine, Lima Dept., Peru

Sample size: 6.5 x 6.0 x 2.8 cm

Origin: Wessels Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa

Sample size: 9.0 x 6.1 x 3.0 cm

Origin: Hotazel Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Sample size: 7.7 x 7.5 x 5.9 cm (top), 6.6 x 3.4 x 2.9 cm (bottom)

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 3.8 x 2.6 x 2.2 cm

Rhodochrosite on quartz

Origin: Sunnyside Mine, San Juan County, Colorado, U.S.A.

Sample size: 6.5 x 4.5 x 4 cm (top), 3.4 x 2.9 x 2.2 cm (bottom)

Origin: Uchucchacua Mine, Lima Dept., Peru

Sample size: 5.2 x 4.2 x 3.5 cm

Origin: Dzezkazgan, Kazakhstan

Sample size: 6.2 x 5.2 x 4.1 cm

Origin: Butte, Montana, U.S.A.

Sample size: 6 x 5 x 2.2 cm

Rhodochrosite on romanechite with barite

Origin: 4380 Bench, Sequoia Pit, Lone Star Mine, Humboldt Co., Nevada, U.S.A.

Sample size: 5.6 x 3.8 x 1.7 cm

Rhodochrosite on quartz

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 3.2 x 2.5 x 2 cm (top), 2.8 x 2 x 2 cm (2nd row), 3.5 x 2.4 x 1.8 cm (3rd row), 3.0 x 1.9 x 1.0 cm (bottom)

Origin: Huayllapon Mine, Pasto Bueno Dist., Ancash Dept., Peru

Sample size: 3.2 x 2.4 x 1.7 cm

Origin: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Sample size: 4.6 x 3.7 x 1.8 cm

Rhodochrosite with barite

Origin: Hotazel Mine, Kalahari Manganese Field, Northern Cape Province, South Africa

Sample size: 6.2 x 3.4 x 1.9 cm (top), 5.2 x 3.2 x 2.4 cm (2nd row), 5.4 x 4.5 x 2.0 cm (bottom)

Origin: Uchucchacua Mine, Dos de Mayo Prov., Huanuco Dept., Peru

Sample size: 5.4 x 4.0 x 2.9 cm (top), 4.9 x 4.3 x 3.8 cm (2nd row), 7.0 x 4.8 x 4.6 cm (3rd row), 8.7 x 6.7 x 4.6 cm (4th row), 5.7 x 4 x 4 cm (bottom)

Rhodochrosite with chalcopyrite

Origin: Emma Mine, Butte, Silver Bow Co., Montana, U.S.A.

Sample size: 11.0 x 9.7 x 3.5 cm

Origin: Manuelita Mine, Morococha District, Peru

Sample size: 9 x 8 x 5.3 cm (top), 8.5 x 3.7 x 2.3 cm (bottom)

Origin: Huayllapon Mine, Pasto Bueno, Ancash Dept., Peru

Sample size: 2.0 x 1.5 x 1.4 cm

Rhodochrosite with quartz

Origin: Sunnyside Mine, San Juan County, Colorado, U.S.A.

Sample size: 7.5 x 5.5 x 4.5 cm

Origin: Uchucchacua Mine, Oyon Prov., Lima Dept., Peru

Sample size: 6.0 x 5.2 x 4.7 cm

Origin: Manuelita Mine, Lima Dept., Peru

Sample size: 8.5 x 5 x 3.4 cm

Origin: Emma Mine, Butte, Montana, U.S.A.

Ex. Gene Meieran collection

Sample size: 6.4 x 5.2 x 2.4 cm

Rhodochrosite on hematite

Origin: NChwaning II Mine, Kalahari Manganese Field, South Africa

Sample size: 6.5 x 3.5 x 1.7 cm (top), 4.1 x 3.0 x 1.7 cm (bottom)

Rhodochrosite on quartz

Origin: Manuelita Mine, Morococha, Junin, Peru

Sample size: 9 x 8.8 x 4.8 cm

Rhodochrosite with sphalerite and quartz

Origin: Cavnic, Muramures, Romania

Sample size: 14.4 x 9.5 x 4.6 cm

Origin: Uchuchaccua Mine, Lima Dept., Peru

Sample size: 6.9 x 3.5 x 2.5 cm (top), 13.8 x 6.5 x 6.2 cm (bottom)

Origin: Manuelita Mine, Morococha, Junin, Peru

Sample size: 9.5 x 7 x 2.5 cm

rhodochrosite, fluorite and chalcopyrite on quartz

Origin: Sweet Home Mine, Alma, Park Co., Colorado, U.S.A.

Sample size: 10.3 x 5.3 x 2.3 cm

Rhodochrosite with quartz

Origin: American Tunnel, near Silverton, San Juan Co, Colorado, U.S.A.

Sample size: 9 x 6.1 x 4.5 cm

Origin: Capillitas Mine, Catamarca Prov., Argentina

Ex. Gene Meieran collection

Sample size: 8.5 x 5.0 x 3.0 cm

Rhodochrosite with shigaite

Origin: Nchwaning Mine, Kalahari Manganese Field, South Africa

Sample size: 7.3 x 2.7 x 1.7 cm

Origin: Uchucchacua Mine, Lima Dept, Peru

Sample size: 2.7 x 1.5 x 1 cm (top), 5.4 x 4.6 x 3.5 cm (bottom)

Origin: N''Chwaning Mine, Kuruman, South Africa

Sample size: 11 x 10 x 3.5 cm

Origin: Manuelita Mine, Morococha Dist., Junin Dept., Peru

Sample size: 18.5 x 16.0 x 7.0 cm (top), 3.5 x 2.6 x 2.6 cm (2nd row), 8.5 x 5.0 x 3.2 cm (bottom)

Origin: Sweet Home Mine, Alma, Park Co., Colorado

Sample size: 7.0 x 4.5 x 2.5 cm

Origin: La Capallita Mine, Catamarca, Argentina

Sample size: 3.7 x 2.2 x 1.6 cm

Origin: Uchuchaccua Mine, Lima Dept, Peru

Sample size: 7.0 x 5.3 x 3.4 cm

Rhodochrosite with quartz and tetrahedrite

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 13 x 10 x 1.5 cm

Origin: Uchucchacua Mine, Lima Dept, Peru

Sample size: 7.5 x 7.5 x 7 cm

Rhodochrosite on quartz

Origin: Silverton District, San Juan Co., Colorado, U.S.A.

Sample size: 6.0 x 5.0 x 3.5 cm

Origin: Emma Mine, Butte, Silver Bow Co., Montana, U.S.A.

Sample size: 4.8 x 3.3 x 3.0 cm

Origin: Huallapon Mine, Pasto Bueno, Ancash Dept., Peru

Sample size: 3.8 x 2.9 x 2.5 cm

Rhodochrosite with fluorite and quartz

Origin: Steward Mine, Butte, Silver Bow Co., Montana, U.S.A.

Sample size: 2.7 x 2.2 x 2.2 cm

Rhodochrosite with quartz

Origin: Corner Pocket Area, Watercourse Raise, Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 2.1 x 2 x 1.7 cm

Rhodochrosite with quartz

Origin: Strawberry Pocket, Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 6.3 x 2.8 x 2.1 cm

Rhodochrosite pseudomorph after shell

Rhodochrosite pseudomorph after fossil clam shell

Origin: Kertch, Crimea, Ukraine

Sample size: 3.7 x 3.7 x 2.2 cm (top), 11 x 10 x 6 cm (bottom)

Rhodochrosite with quartz

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 5.7 x 3.6 x 1.6 cm

Rhodochrosite on manganite

Rhodochrosite with quartz

Rhodochrosite on manganite

Origin: N'Chwaning I Mine, Kalahari Manganese Field, South Africa

Sample size: 6.3 x 4.0 x 3.7 cm (top), 2 x 2 x 2.5 cm (2nd row), 6.4 x 4.2 x 3.5 cm (bottom)

Origin: Ucchuchaccua Mine, Lima Dept., Peru

Sample size: 6.0 x 6.0 x 4.4 cm

Origin: Santa Eulalia, Chihuahua, Mexico

Ex. Barlow collection

Sample size: 5.6 x 5.5 x 5.0 cm

Origin: Hokkaido, Japan

Sample size: 7.1 x 4.2 x 3.6 cm

Rhodochrosite on manganite

Origin: Moanda Mine, Haut-Ogooue, Gabon

Sample size: 5.9 x 5.4 x 3.0 cm

Origin: Manuelita Mine, Morococha Dist., Junin Dept., Peru

Sample size: 7.3 x 6.6 x 4.4 cm

Origin: N''Chwaning Mine, Kuruman, South Africa

Sample size: 8.5 x 6 x 5.5 cm

Origin: Mouanda Mine, Mouanda , Gabon

Sample size: 3.7 x 2.5 x 1.4 cm

Origin: Leonard Mine, Butte, Silver Bow County, Montana, U.S.A.

Sample size: 5.1 x 2.9 x 1.3 cm

Rhodochrosite coated with a thing layer of quartz on manganite

Origin: N'Chwaning Mine, Kalahari, South Africa

Sample size: 3.4 x 2.5 x 2 cm

Origin: Mt. St. Hilaire, Quebec, Canada

Sample size: 3.5 x 2.6 x 1.4 cm

Rhodochrosite pseudomorph after serandite

Origin: Mt. St. Hilaire, Quebec, Canada

Sample size: 5 x 2.6 x 1.8 cm

Rhodochrosite on quartz and pyrite

Origin: Oppu Mine, Aomori Prefecture, Honshu Island, Japan

Sample size: 5.0 x 3.2 x 3.0 cm

Rhodochrosite on manganite

Origin: Moanda Mine, Haut-Ogooue, Gabon

Sample size: 5.1 x 3.5 x 3.2 cm

Rhodochrosite on manganite

Origin: N'chwaning I Mine, Kalahari Manganese Field, South Africa

Sample size: 6.4 x 3.1 x 1.9 cm

Rhodochrosite with quartz

Origin: Davidkovo Mine, Madan, Rhodope Mtns., Bulgaria

Sample size: 5.5 x 5.5 x 2.1 cm

Origin: Manuelita Mine, Morococha, Junin Pr, Peru

Sample size: 6.4 x 5.0 x 2.8 cm

Origin: Santa Eulalia, Chihuahua, Mexico

Sample size: 6.1 x 5.3 x 2.9 cm

Rhodochrosite with minor quartz

Origin: Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 3.5 x 2.0 x 1.4 cm

Rhodochrosite with quartz

Origin: Nandan, Guangxi Province, China

Sample size: 4.5 x 3.6 x 2.4 cm

Rhodochrosite with tetrahedrite and quartz

Origin: Raspberry Pocket, Fluorite Raise, Sweet Home Mine, Alma, Colorado, U.S.A.

Sample size: 4.8 x 4.5 x 2.5 cm

Rhodochrosite on manganite

Origin: N'Chwaning Mine, Kuruman, Cape Province, South Africa

Sample size: 5.8 x 4.6 x 3.2 cm

Photo courtesy of:

Rob Lavinsky

The Arkenstone

Origin: Uchucchacua mine, Oyon Prov., Lima Dept., Peru, South America

Sample size: 5.7 x 3.4 x 3.2 cm (top), 8.3 x 7.2 x 5 cm (bottom)

Origin: N'Chwaning Mine, Kuruman, South Africa, Africa

Sample size: 3 x 2.3 x 2.3 cm (top), 4.7 x 2.5 x 2.3 cm (bottom)

Origin: Mont Ste. Hilaire, Quebec, Canada

Sample size: 3 x 2. 6 x 1.1 cm

Rhodochrosite with quartz

Origin: Strawberry Pocket, Sweethome Mine, Alma Park County, Colorado, U.S.A.

Sampel size: 10 x 5 x 2 cm

Origin: N'Cwhaning I Mine, Kuruman, South Africa, Africa

Ex. Dan Balan collection

Sample size: 9 x 6 x 2.5 cm

Origin: Strawberry Pocket, Sweet Home Mine, Alma, Park Co., Colorado, Southwest U.S.A.

Ex. Dan Balan collection

Sample size: 6.5 x 6.4 x 3.8 cm

Rhodochrosite on quartz

Origin: Sweet Home Mine, Alma, Park County, Colorado, U.S.A.

Ex. Dave Douglass collection

Sample size: 6 x 4.5 x 2.5 cm

Rhodochrosite with quartz

Origin: Mountain Monarch Mine, Engineer Mountain, Ouray County, Colorado, U.S.A.

Ex. Keith Hayes collection

Sample size: 5.2 x 3.6 x 2.5 cm

Rhodochrosite with pyrite and quartz

Origin: Huaron Mines, San Jose de Huayllay district, Cerro de Pasco, Pasco Department, Peru

Ex. John Teague collection

Sample size: 9.1 x 9.1 x 5.1 cm

Rhodochrosite on quartz and fluorite

Origin: Grizzly Bear Mine, Bear Creek Canyon, Ouray, Ouray County, Colorado, U.S.A.

Ex. Ed Rosenzweig collection

Sample size: 6.4x4.9x2.4 cm

Origin: Djayrem Mine, Kazakhstan

Ex. Keith Hayes collection

Sample size: 3.7 x 2.3 x 2.1 cm

Rhodochrosite on matrix with small quartz, calcite and a few pyrite crystals

Origin: Sunnyside Mine, Silverton District, San Juan County, Colorado, U.S.A.

Ex. John Teague collection

Sample size: 2.5 x 1.7 x 1.2 cm

Rhodochrosite on quartz

Origin: Uchuchacua Mine, Peru

Ex. Mike Keim collection

Sample size: 8 x 6 x 4.5 cm

bBright pink rhodochrosite is sprinkled with greyish to white stilbite. The matrix is comprised of the typical mix of quartz and sulfides, with a few good crystals of sphalerite and chalcopyrite to 2 mm.

Origin: Davidkovo Mine, Madan District, Rhodope Mountains, Bulgaria

Ex. Ed Rosenzweig collection

Sample size: 5.8 x 5.6 x 4.5 cm

Origin: Manuelita Mine, Morococha District, Junin Dept. Peru

Ex. Keith Hayes collection

Sample size: 2.2 x 1.4 x 1.0 cm

Rhodochrosite with fluorite and minor chalcopyrite

Origin: Sunnyside Mine (American Tunnel), Howardsville (near Silverton), San Juan County, Colorado, U.S.A.

Ex. Kevin Conroy collection

Sample size: 4 x 2.5 x 2.5 cm

Rhodochrosite with minor galena, discoidal calcite and some blocky crystals (siderite?, calcite?) coated with either a light manganese or goethite layer.

Origin: El Potosi Mine, Santa Eulalia, Chihuahua, Mexico

Ex. Kevin Conroy collection

Sample size: 4.7 x 2.5 x 2.5 cm

Origin: Hunan Prov., China

Ex. Alessandro Genazzani collection

Sample size: 7 x 3 x 4.5 cm

Photo courtesy of:

John Veevaert, Trinity Mineral Co

Trinityminerals.com