Photos of Opals
Cochise College    
Opals- Rough Opal and Specimens
Geology Home Page

Roger Weller, geology instructor     copyright 2012-R.Weller

Quilpie, Queensland, Australia
Hydrophane is a rare form of fire opal that is white while dry, but turns to brilliant
colors when soaked in water.  After it dries, it turns white again.

opal                                                                                                                                     hydrophane1

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