Quartz Photos                
Cochise College
Photos of Bisbee Minerals
Geology Home Page
Roger Weller   


quartz, variety amethyst


Bisbee, Arizona                                                                     
last edited:  4/11/17    number of photos:  7                                                           
Quartz is SiO2



amethyst crystals:  A  B  C  D 

amethyst, pyrite, and selenite:  A  B
quartz stained by iron oxides:  A

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