| PEACOCK ORE or Bornite or Chalcopyrite- Peacock Ore is the nane that old miners gave this mineral, and its easy to see why. The iridescent colors of this specimen resemble the colors of peacock feathers. The official name of this mineral is bornite (CuFeS4-copper iron sulfide). Bornite is a chief ore of copper, which is of immense importance in the electrical industry and in the production of alloys such as brass. Some specimens have been treated with an acid to enhance its color. Its origin is Arizona. |