Cochise College          Photos of Minerals

                          Geology Home Page

                          Roger Weller, geology instructor

                          wellerr@cochise.edu
                                  copyright 2005-R.Weller

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Common Igneous Minerals

igneous rock-forming minerals
olivine
pyroxene
amphibole (hornblende)
micas

feldspars

quartz

accesory igneous minerals
magnetite

beryl

topaz

tourmaline