Arizona
Santa Catalina Mountains, North of Tucson             
Cochise College         

Virtual Geology Field Trips
Virtual Geology Museum
Geology Home Page

Roger Weller, geology instructor   

wellerr@cochise.edu   copyright 2008-R.Weller
 

pegmatite dike-D
Winterhaven area
Gray is quartz and white is feldspar.
 

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