Fluorescent Minerals   
Cochise College    
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Roger Weller, geology instructor

wellerr@cochise.edu 
copyright 2008-R.Weller
 

willemite- 1
Franklin, New Jersey
The dark, non-fluorescent mineral is franklinite and the yellow-green
fluorescent mineral is willemite.
 

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

Specimen courtesy of the Huachuca Gem and Mineral Club