Professional papers. 248-F. Mica deposits of southeastern Piedmont: pt. 9, Thomaston-Barnesville district, Ga.; pt. 10, Outlying deposits in Georgia, distribution and structure of pegmatite bodies in areas, their mineralogical characteristics, and economic possibilities of mica and other pegmatite minerals [with lists of references]; by E. Wm. Heinrich, Montis R. Klepper, and Richard H. Jahns.

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