Tuff Photos
Cochise College
Photos of Rocks       

Igneous Rocks
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu    copyright 2011   
 

rhyolite-obsidian welded tuff-1
Shoshone, California
 

tuff                                                                                                                                             7-27a

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