Precious Opal (Var: Black Opal)

Photo Copyright © 2000-2001 by John H. Betts. All Rights Reserved.
This photo, and many others, have been provided by John Betts Fine Minerals - http://www.johnbetts-fineminerals.com - For more fine minerals click here. - This image is copyrighted. Unauthorized reproduction prohibited.

Locality: Virgin Valley District, Humboldt Co., Nevada, USA

Section of fossilized tree limb that is now completely replaced by black opal - the rarest and most sought-after form of opal. The fire (play of colors) is brilliant and stunningly contrasted by the black color. Total weight = 26.48 carats. Overall size of mineral specimen: 20x13x11 mm. Size of individual crystals: 1-2 mm.

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Copyright © Jolyon Ralph and Ida Chau 1993-2012. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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