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Groutite


Groutite : Mn3+O(OH)

Photo Copyright © David Richerson  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Holbrook, Navajo Co., Arizona, USA
Matrix of petrified wood 4.1cm x 3.4cm x 1.1cm nearly covered with groutite crystals up to 1mm long. Specimen purchased in 1978 at the Tucson Gem and Mineral Show. Dave Richerson specimen and photograph.

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