Chalcocite from Aït Ahmane, Drâa-Tafilalet Region, Morocco

$1,250.00

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A superb example for the species, non-lustrous metallic large platy hexagonal crystals of chalcocite-djurleite in a cluster with very little attached matrix. This is in terrific condition. Exceptionally large crystals for the species. These are said to be intermixed between chalcocite and djurleite. The specimen comes with a previous label from the collection of Jan Erik Larsen.Ait Ahmane, situated in the eastern sector of the Bou Azzer-El Graara inlier within the Anti-Atlas belt of Morocco, is a renowned mining locality with operations dating back to the mid-20th century. Geologically, the area is characterized by a Neoproterozoic ophiolitic sequence where serpentinized ultramafic rocks and quartz diorites are heavily faulted and hydrothermally altered. Mineralogically, the district is famous for its complex vein systems that yield cobalt arsenides, native silver, and nickel minerals, alongside striking associated specimens of cobaltian calcite and various secondary phases that attract mineral collectors globally.