Reference | {Deposit:: MALHOTRA, R, AND P.A. SMITH. DIRECTORY OF ILLINOIS MINERAL}{Deposit:: PRODUCERS-1974. ILLINOIS STATE GEOLOGICAL SURVEY, MINERAL}{Deposit:: NOTE 64, JULY 1976, P. 89.}{Deposit:: MINERAL INDUSTRIES ESTABLISHMENTS IN ILLINOIS. U.S. BUREAU}{Deposit:: OF MINES, 1-8-79.}{Deposit:: CMS LIST 10/81} |