Quartz Photos
Cochise College               
Photos of Minerals
Geology Home Page

Roger Weller, geology instructor

[email protected]    copyright 2011-R.Weller

 
citrine crystals-3

close view of an amethyst crystal converted to citrine
Brazil
Heating amethyst turns it yellow.
 

quartz-citrine                                                                                                                                 6018
Photo is copyright free for non-commercial educational uses.
Just credit photo to R.Weller/Cochise College.
 

Specimen courtesy of Todd Nehem