Syenite Photos                  
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Roger Weller, geology instructor                       

wellerr@cochise.edu
 

Syenite 
last edited:  11/27/07    number of photos:  10
Syenite is a coarse-grained plutonic igneous rock made up
potassium feldspar (orthoclase, microcline, or perthite) with
hornblende or biotite.

photos
porphyritic syenite:  1  2
nepheline syenite:  1  2  3  4
augite syenite:  1  2
hornblende syenite:  1  2

Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.
copyright 2007-R.Weller