Photos of OpalsCochise College
Opal Cabochons
Virtual Geology Museum Hall of Gemstones
Geology Home Page
Photos of OpalsRoger Weller, geology instructor
wellerr@cochise.edu copyright 2008-R.Weller
Australian opal cabochon-3
Photo is copyright free for
non-commercial educational uses.
Just credit photo to R.Weller/Cochise
College