Orthoclase and Microcline Photos 
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor

wellerr@cochise.edu     copyright 2010-R.Weller 

amazonite crystal-2
Florissant, Colorado
A green or bluish green variety of potassium feldspar is called either amazonite
or amazonstone.  Technically, it is microcline, not orthoclase.

amazonite                                                                                                                       13
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.