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Paper copies of chemical analyses made at Illinois State Geological Survey from approximately 1932 to 1995. Includes chemical analyses for approximately 30,000 coal samples, 20,000 rock samples, 5,000 gas samples, 5,000 brine samples, and 5,000 water samples.


    map background search result map search result map Collection of hand samples from Michigan Collection of Geochemical Data from Illinois Collection of Geochemical Data from Illinois Collection of hand samples from Michigan