Peacock ore

Part of Hall of Planet Earth.

Peacock Ore AMNH/R.Mickens

This massive ore is composed of the copper-rich sulfide minerals covellite (purple and blue) and bornite (blue-black). Flowing, copper-rich water transformed a copper-poor rock into this unusually copper-rich ore.  

Provided by Falconbridge Limited, Timmins, Ontario, Canada