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    Geology of the Northgate fluospar district, Colorado / by Steven, Thomas A. (Thomas August), 1917-2013

    Published 1954
    Government Document Map
  7. 7

    The geologic environment of fluorspar deposits in the western United States / by Peters, William C.

    Published 1956
    Thesis Book
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    Fluorspar occurrences in Nevada / by Horton, Robert C.

    Published 1962
    Map
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    Mineral resource potential map of the Lusk Creek Roadless Area, Pope County, Illinois / by Klasner, J. S.

    Published 1983
    Government Document Map
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    Mineral market reports, Apr. 20, 1938.

    Published 1938
    Full Text (via ProQuest)
    Government Document eBook
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    Mineral market reports, May 8, 1939.

    Published 1939
    Full Text (via ProQuest)
    Government Document eBook
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    Fluorspar in the ..

    Online Access
    Government Document Serial
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    Fluorine, fluorite, and fluorspar in central Colorado / by Wallace, Alan R.

    Published 2013
    Online Access
    Government Document eBook
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