Photos of Opals
Cochise College    
Opal Cabochons  
Geology Home Page

Roger Weller, geology instructor     copyright 2011-R.Weller

fire opal cabochons-2

opal                                                                                                                                                                                   654

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

Opal courtesy of Opex Opal
Specializing in precious opals and opal jewelry
Dagbjorn Johnson
 P.O. Box 50548, Santa Barbara, California 93150