Feldspar Photos  
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor

wellerr@cochise.edu     copyright 2009-R.Weller

plagioclase twinning, microscopic view-1(x30)
polished granite slab

Scratches are due to polishing.

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

Specimen courtesy of Greg Davis
The Granite Gallery, 79 North Schraeder Road, Sierra Vista, Arizona 85635
(520) 417-2500