Biggest Crystals              
Cochise College
Virtual Geology Museum (VGM)
Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu
 

The following photos are from Crystal Cave of Giants
http://www.crystalinks.com/mexicocrystals.html
This website also has a good article on the discovery and the geology of these giant
gypsum (selenite) crystals from a large cave in Naica, Chihuahua, Mexico.
 

These photos are being posted here because everyone interested in geology should know about them.
The following photos have been corrected in terms of contrast and lighting from the original photos.
These crystals are really this large! Photos of the miners were not glued to a photo of a geode.


 

 





It is really hot in the cave.  Notice the miners sweating.