Chert Photos                    
Cochise College
Photos of Rocks
Sedimentary Rocks
Virtual Geology Museum
Hall of Rocks
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu

Chert 
last edited:  12/2/07  number of photos:  8                                                                 
Chert is a chemical sedimentary rock made of
cryptocrystalline (very fine-grained) quartz, SiO₂. 
It has a surface that is duller than flint, with
which it is closely related.

photos
chert, brown:  A
chert, fossiliferous:  A  B

chert, gray:  A  B
chert, grayish brown:  A

chert nodules in limestone:  A 
chert arrowheads:  A

Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.
copyright 2007-R.Weller