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Cowlesite


Cowlesite : CaAl2Si3O10·6H2O

Photo Copyright © 2003 Doug Merson  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Upper Ritter Quarry, Ritter, Grant Co., Oregon, USA
Gray cowlesite balls lining vug. Field of view 4 mm. Doug Merson photo and collection.

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