Gypsum Photos 
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor    copyright 2011-R.Weller

gypsum, variety selenite
swallowtail twin crystal-2
Naica, Chihuahua, Mexico


gypsum                                                                                                                                              49
Photo is copyright free only for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.

Specimen courtesy of Collin Mineral Company, Inc.
3215 East Redwood Lane, Phoenix, AZ 85048-7835
(480) 759-1976