. Economic Papers. EAST WALL OF TUNNEL (b) 100 Feet. Mica gneiss Pegmatite (feldspar)Pegmatite Figure 16.—4, Plan of Connally mine, Buncombe County, N. C; reference figures described in , section in east wall of tunnel at (a) in A. C, Section in east wall of tunnel at (b) in A. The feldspar of the pegmatite is badly kaolinized, and it was the inten-tion of Colonel Connally to test the deposit for kaolin. The mica occurschiefiy in the kaolin along the quartz masses and is much crushed in manyplaces. The quantity of mica found in the new tunnel was not large,but the old workings on the hil
. Economic Papers. EAST WALL OF TUNNEL (b) 100 Feet. Mica gneiss Pegmatite (feldspar)Pegmatite Figure 16.—4, Plan of Connally mine, Buncombe County, N. C; reference figures described in , section in east wall of tunnel at (a) in A. C, Section in east wall of tunnel at (b) in A. The feldspar of the pegmatite is badly kaolinized, and it was the inten-tion of Colonel Connally to test the deposit for kaolin. The mica occurschiefiy in the kaolin along the quartz masses and is much crushed in manyplaces. The quantity of mica found in the new tunnel was not large,but the old workings on the hill above are reported to have yielded mica obtained was of a clear light rum color and good quality. 56 MINING INDUSTRY. Yancey County. Poll Hill Mine.—The Poll Hill mine is 1% miles west of south of New-dale, on the east side of South Toe River, just across the river from theGibbs mine. This mine consists of two parts, both of which have been oper-ated intermittently and actively since 1906. The part near the bank of theriver was worke
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