Herkimer Diamonds-Yellow Crystals
                        from Herkimer County, New York                                   
Cochise College
Geology Home Page 
Roger Weller, geology instructor  
Herkimer Diamonds               

last edited:  3/30/18         1 view
Photos are copyrighted by Roger Weller,
but can be used copyright-free for non-commercial educational uses. 

yellow Herkimer diamonds
 The yellow color is caused by a surface coating of an iron mineral.