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  1. By: Whitlock, Herbert P. - Bement, Clarence S. (Clarence Sweet),
    Publication info: New York City, The American Museum of Natural History, [1931]
    Holding Institution: American Museum of Natural History Library
    Subjects: 54.9,4  Crystallography  Fluorspar
  2. By: Bain, Harry Foster, - Geological Survey (U.S.)
    Publication info: Washington, [D.C.], Govt. Print. Off, 1905
    Holding Institution: Morris Library, Southern Illinois University Carbondale
    Subjects: Fluorspar  Geology  Illinois  
  3. By: Schuberth, Christopher J. - Cashatt, Everett D. - Illinois State Museum.
    Publication info: Springfield, Ill, Illinois State Museum, Education Section, [1985]
    Holding Institution: University Library, University of Illinois Urbana Champaign
    Subjects: Biotic communities  Cave-in-Rock Region  Fluorspar  Geology  Guidebooks  Illinois