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Fluorite on the Lee Mine property, Hardin County, Illinois

Core drilling at the Victory fluorspar mine, Hardin County, Ill.

Fluorspar mining methods and costs, Ozark-Mahoning Co., Hardin County, Ill.

Published Year

• 1940-1949 (2)
• 1960-1969 (1)

Subject

• Fluorspar--Illinois--Hardin County (3) *
• Geology--Illinois (1)

Author

• Bishop, O. M. (2)
• Bailie, Harold. (1)
• Melcher, William. (1)
• Myslinski, F. J. (1)
• Powell, E. (1)
• Swanson, A. S. (1)

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