This is a stunningly attractive, iridescent chalcopyrite on calcite from a limited find in Hubei, China several years ago (in about 2015)! A heavy dusting of sparkling, multi-colored iridescent, less than 0.5 mm chalcopyrite crystals cover barely discernible, gray-white to white Calcite scalenohedrons that make up a very attractive grouping. The color of the peacock iridescence is like a kaleidoscope and ranges from scintillating orange to yellow to green and then red and blue! Individual chalcopyrites that comprise the coating are so dense and tightly grouped that only the form of the Calcite is evident with only a trace of Calcite appearing locally in the display area and around the periphery of the piece. There is only a few minor dings on a few crystal tips at the periphery. These are truly something unique to a place and time and this is a particularly breathtaking specimen and one of the best small cabinet pieces of the lot. We have been back to our sources at the mines in Hubei many times since then looking for more, but they are gone, and nothing like them has turned up since. I only get these back as customers sell or trade out old pieces to me, and was lucky to obtain this again. Comes with a custom engraved acrylic base.