| Reference | {Deposit:: U.S. BUREAU OF MINES, 1995, SPATIAL DATA EXTRACTED FROM THE MINERALS AVAILABILITY SYSTEM/MINERAL INDUSTRY LOCATION SYSTEM (MAS/MILS): U.S. BUREAU OF MINES SPECIAL PUBLICATION 12-95.}{Deposit:: TRACE, R.D., 1974, ILLINOIS-KENTUCKY FLUORSPAR DISTRICT, IN A SYMPOSIUM ON THE GEOLOGY OF FLUORSPAR, FORUM ON GEOLOGY OF INDUSTRIAL MINERALS, 9TH, PROCEEDINGS: KENTUCKY GEOLOGICAL SURVEY SPECIAL PUBLICATION SERIES 10, NO. 22, P. 58-76.}{Deposit:: BASTIN, E.S., 1931, THE FLUORSPAR DEPOSITS OF HARDIN AND POPE COUNTIES, ILLINOIS: ILLINOIS STATE GEOLOGICAL SURVEY BULLETIN 58, 116 P.} |