Roger Weller, geology instructor
firstname.lastname@example.org copyright 2010-R.Weller
chalcopyrite crystals on dolomite-1
In the Tri-State district, crystals of chalcopyrite are commonly found perched on
top of curved rhombohedrons of dolomite. The crystal form of chalcopyrite is
clearly shown in the following photo. Bright triangular faces stand out; they are
part of a tetrahedron that consists of four of the triangular faces.
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.
Specimen courtesy of Dave Dechant