Roger Weller, geology instructor
firstname.lastname@example.org copyright 2010-R.Weller
limonite pseudomorph after pyrite-8
large cube modified by octahedron faces
Corner is chipped, exposing pyrite below limonite surface.
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.
Specimen courtesy of
Yavapai Community College