Onyx (Calcite) Photos         
Cochise College                                                                                                          
Photos of Gemstones
Translucent Gemstones

Geology Home Page
Roger Weller, geology instructor                       


Onyx (Calcite) 
last edited:   11/20/17    number of photos:  11
Onyx is calcite, CaCO3
hardness: 3                                                                                         

calcite as amineral


onyx cabochons:  A  B  C  D  E  F G


onyx in jewelry

green onyx beads:  A  B

onyx specimens
banded onyx:  A
lamp carved from onyx:  A

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Just credit photos to R.Weller/Cochise College.
copyright 2017-R.Weller