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
Topic: Earth Science
Subtopic: Minerals and Resources
Keywords: Bornite, Covellite, Hydrogeology, Natural resources, ore deposits