Cochise College
Photos of Rocks       
Igneous Rocks
Geology Home Page
Roger Weller, geology instructor                   copyright 2011


basalt with olivine-1
San Carlos Indian Reservation, Arizona

This specimen came from a classic location: a small lava flow on the San Carlos
Indian Reservation west of Safford, Arizona.  This location is a prime source of
gem grade olivine (peridot).


basalt                                                                                                                                              az1

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