| Reference | {Deposit:: BROWN, W.R. 1962, MICA AND FELDSPAR DEPOSITS OF VIRGINIA: VIRGINIA DIVISION OF MINERAL RESOURCES MINERAL RESOURCES REPORT 3, 195 P.}{Deposit:: DIETRICH, R.V., 1970 MINERALS OF VIRGINIA: VIRGINIA POLYTECHNIC INSTITUTE RESEARCH DIVISION BULLETIN 47, 325 P.} |