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Magnetite
from
Poços de Caldas alkaline complex, Minas Gerais, Brazil
Brazil
Minas Gerais
Caldas
ⓘ
Osamu Utsumi mine
Neves, P.C.P. das, Atencio, D. (2015) Enciclopédia dos Minerais do Brasil. Volume 3: Óxides e Hidróxidos. Campus ULBRA Canoas, 527 pages (in Portuguese).
ⓘ
Poços de Caldas alkaline complex
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
Ulbrich, M. N. (1993). Mineralogy of nepheline syenites from the Poços de Baldas Alkaline massif, se Brazil: chemistry, x-ray data and microtextures of feldspars. Brazilian Journal of Geology, 23(4), 388-399.
USGS Bull 1185-D
Poços de Caldas
ⓘ
Morro do Ferro
Baretto & Fujimori (1986)
and/or