Chalcopyrite, Pyrite
Neversweat Mine, Butte Mining District, Silver Bow County, Montana, USA
Discoidal shape, iridescent chalcopyrite crystals have almost completely covered this pyrite crystal. Also on the same specimen, enargite has been entirely replaced by the chalcopyrite leaving only the epimorph, or shell-like cast, of the crystal form. See additional full size photo. Ex. Claude Huber Collection, one he personally collected in ...
© Daniel Evanich 2018