Acanthite with Chalcopyrite Guanajuato, Mun. de Guanajuato, Guanajuato, Mexico 2.2cm x 1.3cm x .92cm

Description/Interesting Notes: A fantastic example of acanthite from Mexico!!! This specimen consists of a complex grouping of cubic acanthite crystals in association with brassy golden chalcopyrite microcrystals!!! The acanthite crystals exhibit complexly modified and stepped cubic forms with metallic luster!!! The acanthite crystals appear to be perched on a branching structure comprised of slightly iridescent microcrystals of chalcopyrite that appear to possibly be pseudomorphic in origin!!! The pics hardly do it justice!!! Good luck and be sure to check out my other exciting mineral auctions on ebay!!!

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