Carrollite

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Carrollite is a rare copper, cobalt, nickel sulfide, with the very finest of the species coming from the Kamoya South mines in the DRC. This great crystal dates from the late 1990s finds here that were brought out in a few large lots by the Gobin brothers; and this still remains the greatest find of the species to this day. This excellent miniature has sharp, well-defined cube-octahedral faces with a bright, mirror-like, metallic luster. This excellent single crystal measures 4 cm across. Carrollites from this area are the world's best! This textbook, stunning geometric crystal is 85 grams. Dr. Erika Pohl-Ströher - SCH4840

Product details

SpeciesCarrollite
SizeMiniature
Dimensions4.0 x 3.6 x 2.4 cm
Added on12/02/2024
LocalityDR Congo, Haut-Katanga, Kamoya South II Mine

Known provenance

DateCollectorAcquisition price
06/2026Unknown Owner$4,800.00
—The ArkenstoneNot disclosed

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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.