| Reference | {Deposit:: CRAIG, J.R., MILLER, J.W., COX, L.J., KAZDA, R.F., 1978, ORES OF THE MINERAL DISTRICT, IN GAIR, J.E. (ED.), MASSIVE SULFIDES OF VIRGINIA FIELD TRIP GUIDEBOOK: INTERNATIONAL GEOLOGICAL CORRELATION PROGRAMME, PROJECT NO. 60, P. 26-31.}{Deposit:: PARKER, E.W., 1893, SULPHUR, IN U.S. GEOLOGICAL SURVEY MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1891: P. 564-571.}{Deposit:: PHALEN, W.C., 1911, SULPHUR AND PYRITE, IN U.S. GEOLOGICAL SURVEY MINERAL RESOURCES OF THE UNITED STATES, CALENDAR YEAR 1909, PART 2, NON-METALS: P. 685-696.}{Deposit:: WATSON, T.L., 1920, VIRGINIA, IN SMITH, P.S., SULPHUR, PYRITES, AND SULPHURIC ACID; IN U.S. GEOLOGICAL SURVEY, MINERAL RESOURCES OF THE UNITED STATES, 1917, PART 2 - NONMETALS: P. 53-55.}{Deposit:: POOLE, J.W., 1973, ABANDONED MINE AND PROSPECT DATA ON JULIA MINE: VIRGINIA DIVISION OF MINERAL RESOURCES, UNPUBLISHED REPORT.}{Deposit:: 1892 DIREXPL WASHINGTON PYRITE CO.: CONDUCTED EARLIEST MINE DEVELOPMENT.}{Deposit:: 1917 DIREXPL UNKNOWN OPERATOR RE-ESTABLISHED OPERATIONS.}{Deposit:: 1953? DIREXPL NEW JERSEY ZINC CO.: EXPLORATION THROUGH DRILLING PROGRAM.}{Production:: WATSON (1920), CRAIG AND OTHERS (1978), POOLE (1973)} |