$93Median
6Sold (12 mo)
$75Last sale
Cornetite from L'Etoile du Congo Mine, Lubumbashi, Haut-Katanga, DR Congo
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Deep blue radiating crystal groupings of cornetite to 0.8 cm across lying flat across the top of matrix. In good condition. The specimen comes with a previous label from the collection of Jack Nieburger.Located within the Central African Copperbelt in Haut-Katanga, Democratic Republic of the Congo, the L'Etoile du Congo Mine (Star Mine) features a complex sediment-hosted copper and cobalt deposit formed through supergene enrichment and hydrothermal alteration within Neoproterozoic sedimentary rocks. Mining activity here dates back to pre-colonial indigenous workings, evolving into major modern open-pit copper and cobalt extraction that exposes rich oxidized ore zones. These oxidized environments support the formation of rare secondary copper phosphate minerals, most notably cornetite, which has made the locality world-famous among mineral collectors and museums for producing exceptionally rich, deep blue to greenish-blue crystal specimens.
Product details
SpeciesCornetite
SizeSmall Cabinet
Dimensions6.0 x 3.5 x 3.0 cm
Listed on11/03/2026
LocalityDR Congo, Haut-Katanga, L'Etoile du Congo Mine
SKU2354234
Current owner
WM
Weinrich MineralsFeatured
3,650 for sale·9 sold
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