University of Illinois Urbana-Champaign

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Showing 6151–6180 of 11,612 items
Thumbnail for Geochemical and petrographic analysis of the Sparks Hill Diatreme and its relationship to the Illinois-Kentucky fluorspar district
Geochemical and petrographic analysis of the Sparks Hill Diatreme and its relationship to the Illinois-Kentucky fluorspar district
Denny, F. Brett; Maria, Anton H.; Mulvaney-Norris, Joseph L.; Guillemette, Renald N.; Cahill, Richard A.; Fifarek, Richard H.; Freiburg, Jared T.; Anderson, Warren, H.

Thumbnail for Fluorspar in Illinois
Fluorspar in Illinois
Bradbury, James C.; Major, Robert L.; Finger, G.C.

Thumbnail for Illinois Technograph v. 028 (1913-1914)
Illinois Technograph v. 028 (1913-1914)
Submitter: Timothy Donohue