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Written by J. E. Lamar


Industrial Minerals and Metals of Illinois

Industrial Minerals and Metals of Illinois

by J. E. Lamar

This booklet briefly and nontechnically discusses the foregoing materials and some of the work the Illinois State Geological Survey does in gathering information about their occurrence, and character and in developing new uses. The mineral resources of Illinois include many rocks and minerals of varied character and uses. From them are made an..