Chert Photos
Cochise College        
Photos of Rocks        
Sedimentary Rocks
Geology Home Page              

Roger Weller, geology instructor

wellerr@cochise.edu    copyright 2011-R.Weller

gray chert-1
Joplin, Missouri

chert                                                                                                                                              78a

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