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Topaz from Pitinga mine, Presidente Figueiredo, Amazonas, Brazil

Brazil
 
  • Amazonas
    • Presidente Figueiredo
Horbe, M. A., Horbe, A. C., Costi, H. T., & Teixeira, J. T. (1991). Geochemical characteristics of cryolite-tin-bearing granites from the Pitinga mine, northwestern Brazil—a review. Journal of Geochemical Exploration, 40(1), 227-249.
Sighnolfi, G., Costi, H. T., Horbe, A. M. C., Borges, R. M. K., Dall'agnol, R., & Rossi, A. (2008). Mineral chemistry of cassiterites from Pitinga Province, Amozonian Craton, Brazil. Brazilian Journal of Geology, 30(4), 775-782
A. C. Bastos Neto, V. P. Pereira, L. H. Ronchi, E. F. de Lima and J. C. Frantz (2009): The world-class Sn, Nb, Ta, F (Y, REE, Li) deposit and the massive cryolite associated with the albite-enriched facies of the Madeira A-type granite, Pitinga mining district, Amazonas State, Brazil. Canadian Mineralogist 47, 1329-1357.
 
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