Onyx (Calcite) Photos         
Cochise College                                                                                                          
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Roger Weller, geology instructor                       

wellerr@cochise.edu

Onyx (Calcite) 
last edited:  12/19/07    number of photos:  5
Onyx is calcite, CaCO₃
hardness: 3                                                                                         
calcite as amineral

cabochons
onyx cabochons:  A  B

onyx in jewelry

green onyx beads:  A  B
 
onyx specimens
banded onyx:  A

Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.
copyright 2007-R.Weller