222 



UNITED STATES MINERAL RESOURCES 



SELECTED REFERENCES 



Brobst, D. A., 1962, Geology of the Spruce Pine district, 



Avery, Mitchell, and Yancey Counties, North Carolina: 



U.S. Geol. Survey Bull. 1122-A, p. A1-A26. 

 Brown, W. R., 1962, Mica and feldspar deposits of Virginia: 



Virginia Div. Mineral Resources, Mineral Resources 



Rept. 3, 195 p. 

 Burgess, B. C, 1949, Feldspar, in Industrial Minerals and 



Rocks, [2d ed.] : New York, Am. Inst. Mining, Metall. 



Engineers, p. 345-373. 

 Cameron, E. N., Jahns, R. H., McNair, A. H., and Page, 



L. R., 1949, Internal structure of granitic pegmatites : 



Econ. Geology Mon. 2, 115 p. 

 Castle, J. E., and Gillson, J. L., 1960, Feldspar, nepheline 



syenite, and aplite, in Industrial Minerals and Rocks, 



[3d ed.] : New York, Am. Inst. Mining, Metall. and 



Petroleum Engineers, p. 339-362. 

 Cooper, J. D., and Wells, J. R., 1970, Feldspar, in Mineral 



facts and problems: U.S. Bur. Mines, Bull. 650, p. 977- 



988. 

 DuBois, H. B., 1940, Development and growth of the feldspar 



industry: Am. Ceramic Soc. Bull., v. 19, no. 6, p. 206- 



213. 

 Engineering and Mining Journal, 1970, Nonmetallic minerals, 



in Miscellaneous Metals: Eng. and Mining Jour., v. 



171, p. 22-28. 

 Feitler, S. A., 1967, Feldspar resources and marketing in 



eastern United States: U.S. Bur. Mines Inf. Circ. 8310, 



41 p. 

 Hill, T. E., Jr., Kenworthy, H., Ritchey, R. A., and Gerard, 



J. A., 1969, Separation of feldspar, quartz, and mica from 



granite: U.S. Bur. Mines Rept. Inv. 7245, 25 p. 

 Hunter, R. E., 1965, Feldspar in Illinois sands — a further 



study: Illinois State Geol. Survey Circ. 391, 19 p. 

 Jahns, R. H., 1955. The study of pegmatites, in pt. 2 of Bate- 

 man, A. M., ed.. Economic G^eology, 50th anniversary 



volume, Urbana, 111., Economic Geology Pub Co., p. 

 1025-1130. 



Norton, J. J., and Page, L. R., 1956, Methods used to deter- 

 mine grade and reserves of pegmatites: Mining Engi- 

 neering, v. 8, no. 4, p. 401-414. 



O'Meara, R. G., Norman, J. E., and Hammond, W. F., 1939, 

 Froth flotation and agglomerate tabling of feldspar: 

 Am. Ceramic Soc. Bull., v. 18, no. 8, p. 286-292. 



Parker, J. M., Ill, 1948, New Jersey's potential feldspar 

 resources : Rutgers Univ. Bur. Mineral Research, Bull. 

 5, pt. 1, 66 p. 



1950, Feldspar and mica deposits of Southeastern 



United States, in Snyder, F. G., ed.. Symposium on 

 mineral resources of the Southeastern United States: 

 Knoxville, Tenn., Tennessee Univ. Press, p. 42-48. 



Redeker, I. H., 1970, North Carolina feldspar flotation and 

 solutions to waste disposal problems [abs.] : Mining 

 Eng., v. 22, no. 1, p. 42; preprint for AIME annual 

 meeting no. 7-H-83, 17 p. 



Sheppard, R. A., and Gude, A. J., 3d., 1965, Potash feldspar 

 of possible economic value in the Barstow Formation, 

 San Bernardino County, California: U.S. Geol. Survey 

 Circ. 500, 7 p. 



1968, Distribution and genesis of authigenic silicate 



minerals in tuffs of Pleistocene Lake Tecopa, Inyo 

 County, California: U.S. Geol. Survey Prof. Paper 597, 

 38 p. 



Sheppard, R. A., and Walker G. W., 1969, Potassium feldspar 



in Mineral and water resources of Oregon: U.S. 90th 



Cong., 2d sess., Senate Comm. Interior and Insular 



Affairs, p. 268-272. 

 Trauffer, W. E., 1965, Georgia crushed granite firm makes 



feldspar-quartz by-product: Pit and Quarry, v. 58, no. 



2, p. 97-100. 

 Wells, J. R., 1972, Feldspar, nepheline syenite and aplite, 



in Minerals Yearbook, 1970, v. 1, Metals minerals and 



fuels: U.S. Bur. Mines, 8 p. (preprint). 



