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    The economic definition of ore : cut-off grades in theory and practice / by Lane, Kenneth F.

    Published 1988
    Book
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    Factors involved in mineral sample preparation / by Agus, F.

    Published 1974
    Book
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    Methods for the analysis of ores, rocks and related materials by Donaldson, E. M. (Elsie M.)

    Published 1982
    Book
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