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Yttrobetafite-(Y), Gummite, Biotite


Yttrobetafite-(Y) : (Y,U,Ce)2(Ti,Nb,Ta)2O6OH, Gummite, Biotite

Photo Copyright © Pavel M. Kartashov collection & photo  - This image is copyrighted. Unauthorized reproduction prohibited.
Locality: Alakurtti pegmatite, Northern Karelia, Murmanskaja Oblast', Northern Region, Russia
Fragment of the large grain of compact mustard-yellow yttrobetafite from the type locality. Associating minerals are black biotite and redish-brown veinlets of gummite. Specimen size is 4.5x2.8x1.4 cm and its radioactivity is 710 μR/h. Collected by the author - A.P. Kalita in 1958. Pavel M. Kartashov collection and photo.

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