Photos of Opals
Cochise College    
Opal Cabochons  
Geology Home Page

Roger Weller, geology instructor     copyright 2011-R.Weller

Australian opal cabochons-6

opal                                                                                                                                                                                       18

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

Opals courtesy of Opal Network

Specializing in precious opal and opal fossils
Steven Szeker

P.O. Box 1709, Lightning Ridge 2834 NSW, Australia
phone:  (612) 4176-34180