Chrysoprase Photos      
Cochise College                                                                                            
Photos of Gemstones
Translucent Gemstones

Geology Home Page
Roger Weller, geology instructor                       

wellerr@cochise.edu


Chrysoprase 
last edited:  11/27/17    number of photos:  19
Chrysoprase is quartz, SiO2,
colored green by the presence of nickel.
Mineral information on quartz
hardness: 7                                                                          
                                                      

Chrysoprase is commonly thought of as a translucent cryptocrystalline form
of quartz with an apple green color.  The color, however can range from pale
green to yellowish green to grayish green and even lime green.  The color
may slightly fade upon exposure to sunlight.  The green color comes from the
presence of a green, nickel-rich clay mineral, pimelite, within the chalcedony.
Garnierite, another nickel-rich mineral, is also another possible coloring source.

An ancient source of chrysoprase was Silesia.  Today, most chrysoprase comes
from Australia.  In some cases, white chalcedony that has been dyed green is
being passed off as chrysoprase.  Persons with severe nickel allergies have
developed rashes from contact with chrysoprase.  

lectures on chrysoprase
Chrysoprase by Audrey LaClair

 

cabochons
chrysoprase cabochons:  A  B  C  D  E
chrysoprase from Australia:  A  B  C  D                                                                        

 

chrysoprase in jewelry

chrysoprase beads:  A  B  C
lemon chrysoprase pendant: 
A


chrysoprase specimens
chrysoprase slabs: 
A  B  C  D 

chrysoprase, rough:  A  B  C
lemon chrysoprase, rough: 
A  B


Additional information on chrysoprase:
Chrysoprase is found in close association with serpentine.
the word chrysoprase comes from the Greek chrysos (golden) and prason (leek).

US locations:                                          
California                                                                                                                   

     Porterville, Tulare County
     Visalia
Oregon
     Nickel mountain

WORLD-WIDE locations
Germany
     Frankenstein  (Zabkowice), Silesia
Australia
     Marlborough, Princhester, and Yaamba areas-Central Queensland

 

Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.
copyright 2017-R.Weller