Bornite peacock ore: The mineral Bornite information and ...
The Mineral bornite. Bornite is an ore mineral of copper, and is known for its iridescent tarnish . " Peacock Ore ", which is sold to amateur mineral collectors and tourists, is often labeled as a variety of Bornite. However, most Peacock Ore in reality is Chalcopyrite treated with acid, which produces a stronglycolored iridescent tarnish.