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


last edited:  11/16/16    number of photos:  10
Syenite is a coarse-grained plutonic igneous rock made up
potassium feldspar (orthoclase, microcline, or perthite) with
hornblende or biotite.

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 2016-R.Weller