A very uncommon specimen of chalcotrichite as red INCLUSIONS in crystals of calcite - with the added bonus of a finger of crystallized copper on the specimen to make it a wonderful copper-mineral combo specimen. What you mostly see from this mine are specimens of copper alone. This rare combo piece came out of the collection of noted African mineral collector Marshall Sussman. It is a superb association piece and something you do not see from anywhere else I can think of but old Bisbee.