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1.- Occurrence of magnetite in the sand fraction of an Oxisol in the Brazilian savanna ecosystem, developed from a magnetite-free lithology
Australia, CSIRO (Commonwealth Scientific and Industrial Research Organization); Melbourne, Victoria, 2006
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2.- Oxidation rate of pyrite from Brazilian coal as affected by CaCO (sub 3) , oxygenation, and crystal size
Taylor & Francis; Abingdon; GBR; United Kingdom, 2004
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