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Opal (Var: Opal-AN)


Opal (Var: Opal-AN) : SiO2·nH2O

Photo Copyright © 2007 Peter Cristofono  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Crater of Diamonds State Park (Arkansas Diamond Corp. Mine; Mauney Mine; Ozark Mine; Prairie Creek Lamproite), Murfreesboro, Pike Co., Arkansas, USA
Thin coating of hyalite opal on 43 mm x 33 mm matrix. P. Cristofono specimen and photo, field collected in 2007.

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