Cochise College - a source of geological educational resources

quick, easy access to information and views on gemstones plus links to articles and videos

rhodochrosite cabochon 

 Also visit: Cochise College Geology Home Page -a source of all things geological
for educators and students
 Roger Weller, geology instructor ( 
 last edited:  4/4/17  

   Photos of Gemstones
1967 views of transparent, translucent, and synthetic gemstones

amethyst and diamonds  

    Photos of Opals
    281 views of opals and opal jewelry

Australian fire opal

     Photos of Ocean Jasper
91 views of an amazingly varied gemstone

ocean Jasper from Madagascar

    Online Gemstone Articles
     81 papers by Cochise College Students

     Gemstone Properties
      hardness, chatoyancy, color, asterism, inclusions, etc.


     Gemstone Videos
     71 videos on gemstones and gemstone collecting