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Törnebohmite-(Ce), Cerite-(Ce), Ferriallanite-(Ce)


Törnebohmite-(Ce) : (Ce,La)2Al(SiO4)2OH, Cerite-(Ce) : (Ce,Ca)9(Mg,Fe)Si7(O,OH,F)28, Ferriallanite-(Ce) : {CaCe}{Fe3+AlFe2+}[O|OH|SiO4|Si2O7]

Photo Copyright © Pavel M. Kartashov collection & photo  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Bastnäs mines, Riddarhyttan, Skinnskatteberg, Västmanland, Sweden
Typical for the occurrence appearance of greenish-grey granular tornebohmite. Pinkish spot in the left part of the picture is cerite core. It is surrounded by grey tornebohmite (mainly in the right part of the picture), which form intermediate rim. Black ferriallanite grains are visible in both right corners of the picture, they form outer rim. FOV ~6x4 mm. Ex Roy Kristiansen specimen. Pavel M. Kartashov collection and photo.

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