| Reference | {Deposit:: BAILIE, H., E. POWELL, W. MELCHER, AND F. J. MYSLINSKI.}{Deposit:: FLUORSPAR MINING METHODS AND COSTS, OZARK-MAHONING CO.,}{Deposit:: HARDIN COUNTY, ILL. BUMINES IC 7984, 1960, 33 PP.}{Deposit:: BRADBURY, J. C., G. C. FINGER, AND R. L. MAJOR. FLUORSPAR}{Deposit:: IN ILLINOIS. ILL. GEOLOGICAL SURVEY CIRCULAR 420, 1968, P.13.}{Deposit:: FINGER, G. C., H. E. RISSER, AND J. C. BRADBURY. ILLINOIS}{Deposit:: FLUORSPAR. ILL. GEOLOGICAL SURVEY CIRCULAR 296, 1960, 36 PP.}{Deposit:: PINCKNEY, D. M. MINERAL RESOURCES OF THE ILLINOIS-KENTUCKY}{Deposit:: MINING DISTRICT. U. S. GEOLOGICAL SURVEY PROF. PAPER 970,}{Deposit:: 1976, 15 PP.}{Deposit:: WELLER, J. M. AND R. M. GROGAN. GEOLOGIC MAP OF THE}{Deposit:: FLUORSPAR DISTRICT OF SOUTHERN ILLINOIS. ILL. GEOL.}{Deposit:: SURVEY BULLETIN 76, 1950, PLATE 4.} |