Quartz Photos
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor

[email protected]    copyright 2011-R.Weller

 
chalcedony-1
Patagonia, Arizona-1
Chalcedony is white agate.
  

quartz-chalcedony                                                                                                                        059b
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.

Specimen from Cochise College collection
cochise059