Photos of OpalsRoger Weller, geology instructor
wellerr@cochise.edu copyright 2008-R.Weller
Australian opalized shells-1
14 Mile Coober Pedy Opal Field, South
Australia, Australia
Shells have been partially polished.

Photo is copyright free for non-commercial educational uses.
Just
credit photo to R.Weller/Cochise College.
Opal specimen courtesy of Opex Opal
Specializing in precious opals and opal jewelry
Dagbjorn Johnson
P.O. Box 50548, Santa Barbara, California 93150
opexopal@verizon.com
opex@hotmail.com