$8,500Median
2Sold (12 mo)
$4,500Last sale
Calcite (Cobalt-rich), Kolwezite
2
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Calcite (cobalt-rich) with kolwezite, 4.6 cm, from the Mashamba-West mine, Katanga, Democratic Republic of the Congo. Photo by Ben DeCamp.
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Mineral guide
Learn about Cobalt
native metal prized for rarity and steel-gray luster, with bold contrasts to erythrite or calcite; Bou Azzer and Schneeberg stand out.
Regional guide
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