“Cluster of Chalcopyrite crystals, with a dark bronze patina and marked striations on some faces. Most probably from Kamoya or Kamfundwa Mine. Collected ca. 2007. It is possible that some of these Chalcopyrites are pseudomorphed after Carrollite (see: http://www.agab.be/mineralogie/Katanga/carrollite.html). The damage/dings observed on some of these specimens suggest they may have been recovered at the crusher/smelter. ”