Photos of Opals
Cochise College    
Opals in Jewelry
Geology Home Page

Roger Weller, geology instructor     copyright 2017-R.Weller

opal beads-9
Australian opal

opal                                                                                                                                            opex616

Photo is copyright free for non-commercial educational uses. 
Just credit photo to R.Weller/Cochise College.

Opal jewelry courtesy of Opex Opal
Dagbjorn Johnson
P.O. Box 50548, Santa Barbara, California 93150