Carrollite on Calcite with Chalcopyrite - image 1

Carrollite on Calcite with Chalcopyrite

1

$1,500.00

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Alan Fertel
Alan Fertel
Leesport, Pa.
6 for sale·8 sold

Carrollite on Calcite with Chalcopyrite

Kamoya South Il Mine, Kamoya, Haut-Katanga,

DR Congo

4.1 x 3.3 x 2.5 cm

Ex. Dr. Erika Pohl-Ströher


Carrollite is a rare copper cobalt nickel sulfide mineral which crystallizes in the hexoctahedral class system. Crystals of this quality were found in the 1990’s and were recognized as best in class. This specimen is a highly modified, lustrous metallic crystal on a matrix of Calcite. A small patch of brassy Chalcopyrite sits adjacent to the crystal, offering a nice the contrast to the silvery gray Carrollite.

Product details

Species
Carrollite, Calcite, ChalcopyriteAbout Carrollite →
SizeMiniature
Dimensions4.1 x 3.3 x 2.5 cm
Listed on01/27/2026
Locality
DR Congo, Haut-Katanga, Kamoya South II MineRegional guide →

Known provenance

DateCollectorAcquisition price
—Erika Pohl-StroherNot disclosed

Learn more

Mineral guide
Learn about Carrollite
cobalt-rich thiospinel with razor-sharp spinel-octahedral crystals, mirror luster, on contrasting carbonate matrices from the DRC and Bou Azzer.
Carrollite
Regional guide
Carrollite from Kamoya South II Mine, DR Congo
Kamoya South II is the modern benchmark locality for carrollite. Its best specimens have the look that made the species famous among contemporary sulfide collectors: brilliant silver to steel-gray crystals, often mirror-faced, with crisp spinel-family geometry set into pale calcite or dolomitic carbonate. The visual effect is unusually clean for a sulfide—hard, metallic geometry against light matrix—and the finest examples have enough reflectivity that the faces flash like cut metal when turned under a lamp.