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Volkonskoite, Corundum (Var: Ruby)


Volkonskoite : Ca0.3(Cr,Mg,Fe)2(Si,Al)4O10(OH)2·4H2O, Corundum (Var: Ruby) : Al2O3

Photo Copyright © Knut Eldjarn  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Kleggåsen Ruby Quarry, Froland, Aust-Agder, Norway
Green Volkonskoite rimming a ruby crystal from Kleggåsen, Froland, Aust-Agder, Norway. Field of view: 2 cm. Specimen and photo: Knut Eldjarn.

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