Roger Weller, geology instructor
firstname.lastname@example.org copyright 2010-R.Weller
a polished heart made of covellite
Covellite is copper sulfide. It is a rather unique mineral because it has a
micaceous structure and a deep blue metallic color. This heart is the only
pieces of polished covellite that I have ever encountered.
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Doehrel/Cochise College.
Specimen courtesy of Renee Doehrel