Reference | {Deposit:: EDMUNDSON, R.S., 1938, BARITE DEPOSITS OF VIRGINIA: VIRGINIA GEOLOGICAL SURVEY BULLETIN 53, 85 P.}{Deposit:: WATSON, T.L., 1907, SULPHATES, IN MINERAL RESOURCES OF VIRGINIA: LYNCHBURG, VIRGINIA, JAMESTOWN EXPOSITION COMISSION, PP. 305-335.}{Deposit:: HAMILTON, C.L., 1964, GEOLOGY OF THE PEAKS OF OTTER AREA, BEDFORD AND BOTETOURT COUNTIES, VIRGINIA: UNPUBLISHED PHD THESIS, VIRGINIA POLYTECHNIC INSTITUTE.}{Deposit:: WOODWARD, H.P., 1932, GEOLOGY AND MINERAL RESOURCES OF THE ROANOKE AREA, VIRGINIA: VIRGINIA GEOLOGICAL SURVEY BULLETIN 34, 172 P.}{Deposit:: 1866 DIREXPL ? - DUG OPEN PITS AND MINED BARITE}{Deposit:: 1906 DIREXPL ? - DUG TRENCHES AND SHAFTS, MINED}{Production:: EDMUNDSON (1938)} |