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Danburite, Dravite


Danburite : Ca[BSiO4]2, Dravite : [Na][Mg3][Al6][(OH)3|OH|(BO3)3|Si6O18]

Photo Copyright © Knut Eldjarn  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Bakstevalåsen, Gunhildrud, Øvre Eiker, Buskerud, Norway
Yellow crystals of Danburite and black Dravite from an amazonite-pegmatite at Bakstevalåsen, Øvre Eiker, Buskerud, Norway. Field of view: 3 cm. Specimen and photo: Knut Eldjarn.

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