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Columbite


Columbite : (Fe,Mn)(Nb,Ta)2O6

Photo Copyright © Peter Andresen  - This image is copyrighted. Unauthorized reproduction prohibited.
Walking up the stairs to the mineral collection in the Geological Museum in Oslo, you can see this huge columbite crystal. The coin in the foreground is 2cm in diameter. Photo taken 9. Des. 2007.

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