Cochise College
Photo of the MonthGeology Home Page October 2006
Roger Weller, geology instructor
wellerr@cochise.edu
copyright 2006-R.Weller
labradorite feldspar
This polished specimen of labradorite
feldspar (a plagioclase feldspar) illustrates both
polysynthetic twinning and schiller.
Link to more feldspar photos:
feldspar

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