Gypsum Photos 
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor

wellerr@cochise.edu    copyright 2011-R.Weller

 
gypsum, variety selenite
swallowtail twin crystal-4
 

gypsum                                                                                                                                          4721
Photo is copyright free only for non-commercial educational uses.
Credit photo to R.Weller/Cochise College.