Professional papers. 248-D. Mica deposits of southeastern Piedmont: pt. 5, Shelby-Hickory district, N. C, pt. 6, Outlying deposits in North Carolina, distribution and structure of pegmatite bodies in areas, their mineralogical characteristics, and economic possibilities of mica and other pegmatite minerals [with list of references cited]; by Wallace R. Griffitts and Jerry C. Olson.