Thorium deposit, consisting of magnetite stockworks in highly weathered alkaline rocks. The deposit was studied as a natural analogue for nuclear waste disposal. Once the world's largest baddeleyite deposit, but now depleted.
Originally known as "Morro Alto e Consulta".
Ref.:
BARETTO, P.M.C. & FUJIMORI, K. (1986) Natural analogue studies: geology and mineralogy of Moro do Ferro, Brazil. Chemical geology, 55, 297-312.
WABER, N. (1991) Mineralogy, petrography and geochemistry of the Poços de Caldas analogue study sites, Minas Gerais, Brasil; Morro de Ferro. Universitats Bern, Mineralogisches - Petrographisches Institut, SKB Technical Report, No. 90-12, 110p.
Wedow, Jr., H.: The Morro do Ferro Thorium and Rare-Earth Ore Deposit, Pocos de Caldas District, Brazil. USGS Bull 1185-D.
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Map Reference: 21°55'S , 46°34'W
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Mineral List:53 entries listed. 47 valid minerals.
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