Carrollite was named after its occurrence in Carroll Co. Maryland, US, at the Patapsco mine, Sykesville. Carrollite is a sulfide of copper and cobalt, sometimes with substitution of nickel for the metal ions. It belongs to the Linnaeite group. Carrollite occurs in hydrothermal vein deposits and can be identified in the field by its color variations, such as gray, copper red, light gray, and steel. Its opaque form has indistinct cleavage and a metallic luster. It is often associated with minerals such as Tetrahedrite, Linnaeite, Siegenite, Polydymite, Digenite, Pyrite, Chalcopyrite, Bornite, Chacocite, Pyrrhotite, Sphalerite, Millerite, Gersdorffite, Ullmannite, Cobaltoan Calcite, and Djurleite.

Carrollite has been found and mined in the following places:
USA in Carroll Co. Maryland, Patapsco mine, Finksburg and the Mineral Hill mine, Sykesville
Mexico at Boleo, Baja California
Bulgaria near Chernomorets, Burgas
Chile in the Carrizal Alto copper district, Atacama
Slovakia at Vysna Boca, Nizke Tatry Mountains
Germany in the Kohlenbach mine, near Eiserfeld, and the Siegerland district, North Rhine-Westphalia
Sweden in Gladhammar, Kalmar
Japan in the Sazare mine, Ehime Prefecture, and the Shirataki mine, Kochi Prefecture
North Korea at the Hol Kol Au–Cu mine, about 75km southeast of Pyongyang, Suan Co.
Namibia at Tsumeb
Zimbabwe at the Madziwa (Dry Nickel) mine, Bindura, and Shamva
Congo from Kambove, and in the Kamoto and Musonoi mines, near Kolwezi, Katanga Province
Zambia from the Rokana mine, Kitwe
Australia from Kambalda, 56km south of Kalgoorlie, Western Australia

References

http://www.azomining.com/Article.aspx?ArticleID=1013; Carrollite - RruffProject Website-University of Arizona; Carrollite – Webmineral;
Carrollite – Mindat; https://en.wikipedia.org/wiki/Carrollite

Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo
Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo
Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo
Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo
Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo
Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo
Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo Classic Large Carrollite Crystal in Calcite from the Kambovem Mines, Congo
Item # 1CARRRO 01175642

Classic Large Carrollite Crystal in Calcite from the Kambove Mines, Congo

$64.00

Carrollite from the 4000 ft level of the Kambove Mines in Kambove, Katanga Province, Democratic Republic of the Congo. This specimen is 6.6 cm long, with a 1.2 x 1.2 x 1.1 cm Carrollite crystal with 1 surface extraction damage. This Crystal is partly covered by being between calcite crystals, with another crystal visible below the main crystal. This beautiful specimen was procured from a South African Mineral Dealer in 2004
specimen weighs 4.8 oz or 0.3 lbs (137g) and measures 2.6 x 1.8 x 1.4 inches (6.6x 4.7 x 3.6cm)

Carrollite Crystals in Calcite from the Kambove Mines, Congo
Carrollite Crystals in Calcite from the Kambove Mines, Congo
Carrollite Crystals in Calcite from the Kambove Mines, Congo
Carrollite Crystals in Calcite from the Kambove Mines, Congo
Carrollite Crystals in Calcite from the Kambove Mines, Congo
Carrollite Crystals in Calcite from the Kambove Mines, Congo
Carrollite Crystals in Calcite from the Kambove Mines, Congo Carrollite Crystals in Calcite from the Kambove Mines, Congo Carrollite Crystals in Calcite from the Kambove Mines, Congo Carrollite Crystals in Calcite from the Kambove Mines, Congo Carrollite Crystals in Calcite from the Kambove Mines, Congo Carrollite Crystals in Calcite from the Kambove Mines, Congo
Item # 2CARRRO 01172351

Carrollite Crystals in Calcite from the Kambove Mines, Congo

$39.00

Carrollite from the 4000 ft level of the Kambove Mines in Kambove, Katanga Province, Democratic Republic of the Congo. This specimen has Carrollite crystals extraction damage. These Crystals are embedded in and between calcite crystals. This is a nice specimen that was procured from a South African Mineral Dealer in 2004

specimen weighs 14.5 oz or 0.9 lbs (412.5g) and measures 4 x 3.4 x 2 inches (10.3 x 8.6 x 5.2cm)

Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo
Item # 3CARRRO 01173351

Carrollite Crystals and Chalcopyrite in Calcite from the Kambove Mines, Congo

$49.00

Sold Out!

Carrollite and Chalcopyrite from the 4000 ft level of the Kambove Mines in Kambove, Katanga Province, Democratic Republic of the Congo. This specimen has Carrollite crystals with extraction damage. These Crystals are embedded in and between calcite crystals. This is a nice specimen that was procured from a South African Mineral Dealer in 2004

specimen weighs 17.5 oz or 1.09 lbs (496g) and measures 3.2 x 3.2 x 2.4 inches (8.2 x 8.1 x 6.1cm)