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  1. 1
    Lake Superior iron resources : preliminary sampling and metallurgical evaluation of Mesabi Range nonmagnetic taconites

    Lake Superior iron resources : preliminary sampling and metallurgical evaluation of Mesabi Range nonmagnetic taconites by Marovelli, Robert Lawrence

    [Washington] : U.S. Bureau of Mines, 1961
    Format: Book


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  2. 2
    Evaluating Cuyuna manganese resources by sulfatizing

    Evaluating Cuyuna manganese resources by sulfatizing by Prasky, Charles

    Washington, DC : U.S. Dept. of the Interior, Bureau of Mines, 1961
    Other Authors: “…Marovelli, Robert Lawrence…”
    Format: Book


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