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Brazil | |
| Am Min (1955) 40:55-63 Encyclopedia of Mins., 2nd. ed.: 706. |
| Cabral, A.R., Sattler, C.-D.(2004): Alteration of pyrophanite: transition in chemical composition to a manganese analogue of pseudorutile - evidence from the Quadrilatero Ferrifero of Minas Gerais, Brazil. N. Jb. Mineral. Monatsh.: 3(2004): 97-103 Cabral, A. R., Lehmann, B., Sattler, C. D., Pires, F. R. M., & Kaneko, K. (2002). Hg–Tl-bearing manganese oxide from Conta História manganese deposit, Quadrilátero Ferrífero, Minas Gerais, Brazil. Applied Earth Science, 111(2), 123-127. |
| Guarino, Vincenza, Lustrino, Michele, Zanetti, Alberto, Tassinari, Colombo C.G., Ruberti, Excelso, de' Gennaro, Roberto, Melluso, Leone (2021) Mineralogy and geochemistry of a giant agpaitic magma reservoir: The Late Cretaceous Poços de Caldas potassic alkaline complex (SE Brazil) Lithos, 398-399. 106330 doi:10.1016/j.lithos.2021.106330 Andrezza Azzi, Daniel Atencio, Marcelo Andrade, Reynaldo Contreira (2018) Crystal-chemistry of Y-poor hainite-(Y) from Poços de Caldas alkaline complex, Minas Gerais, Brazil. in abstracts of the 22nd IMA Meeting Melbourne p 226 |
| Azzi, Andrezza de Almeida (2019) Caracterização cristaloquímica de minerais do Complexo Alcalino de Poços de Caldas – MG [Crystallochemical characterization of minerals from the Alkaline Complex of Poços de Caldas – MG]. Postdoctoral degree, Instituto deGeociências da Universidade de São Paulo. São Paulo. |
| Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe |
Prefeitura quarry, Poços de Caldas, Minas Gerais, Brazil