Quartz Photos
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor

wellerr@cochise.edu    copyright 2011-R.Weller

 
quartz geode-11
chalcedony filling a thunderegg
 


quartz-geode                                                                                                                                 0412
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.