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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Article
Author(s)
Ana Olivia Barufi Franco-Magalhães1, Daniel Françoso de Godoy2 and Leticia dos Santos Pires1
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DOI:10.17265/2328-2193/2018.06.001
Affiliation(s)
1. Instituto de Ciência e Tecnologia, Universidade Federal de Alfenas, Campus Poços de Caldas, Poços de Caldas 37715-400, Brazil
2. Departamento de Petrologia e Metalogenia, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista, Campus Rio Claro, Rio Claro 13506-900, Brazil
ABSTRACT
In PCAC (Poços de Caldas
Alkaline Complex), in southeastern
Brazil, it is observed a polyphase mineralization related to Zr-, U-, Th-, Mo-,
and REE-enrichment due to hydromethermal processes which affected alkaline primary rock. Primary
Zr-minerals were leached and concentrated as “caldasite”, a rock composed
mainly by zircon and baddeleyite in different proportions. Several techniques
of mineralogical characterization were applied and results indicated zircon,
baddeleyite, magnetite and iron-oxyhydroxides, mainly. Magnetic separation by
WHIMS (Wet High-Intensity
Magnetic Separation) was performed in order to indicate the efficiency for
Fe-concentration removal for potential application in refractory industry.
KEYWORDS
Zircon, baddeleyite, caldasite, Poços de Caldas alkaline massif, Brazil.
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