| Graupner, T., Melcher, F., Gäbler, H.-E., Sitnikova, M., Brätz, H., Bahr, A. (2010) Rare earth element geochemistry of columbite-group minerals: LA-ICP-MS data. Mineralogical Magazine, 74 (4) 691-713 doi:10.1180/minmag.2010.074.4.691 | Journal (article/letter/editorial) | Australia Volta Grande (Mibra mine), Nazareno, Minas Gerais, Brazil Sao Joao del Rei, Minas Gerais, Brazil...tantalite-(Mn) G 14, Nkumua mine, Kanzambi, Shabunda, Kivu, DRC Bionga mine, Shabunda, Kivu, DRC Tanco...mainly composed of albite, quartz and muscovite; (2) a locally developed quartz-albitegarnet zone (probably...alteration by Li-bearing micas, as well as (4) a complex quartz-feldspar-spodumene core zone. Two generations of...pegmatite body. The first generation occurs in the quartz-albite-garnet zone as generally small crystals |
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