Gneiss Photos 
Cochise College        
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Roger Weller, geology instructor

wellerr@cochise.edu    copyright 2008-R.Weller

gneiss from Colorado-7
granite dike cutting across gneiss
Gunnison Canyon East of Montrose, Colorado
Note drill hole used for blasting the rock.
 

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