Obsidian Photos
Cochise College
Photos of Rocks       

Igneous Rocks
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu    copyright 2011 


flow banded obsidian-1
Salton Sea, California  
 


obsidian                                                                                                                                        7-03a

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