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Variability in “crystallinity” Values among the Kaolin Deposits of the Coastal Plain of Georgia and South Carolina

Published online by Cambridge University Press:  01 January 2024

David N. Hinckley
David N. Hinckley*
Affiliation:
AC Spark Plug Division, General Motors Corp., Flint, Michigan, USA
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Abstract

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Quantitative measurement of the relative degree of crystal perfection among 144 samples of Coastal Plain kaolin shows that the deposits are nonhomogeneous with respect to crystallinity and that the hard and soft types can be distinguished at the 0.95 probability level by an analysis of variance. The nonhomogeneity of the deposits and the distinction between the hard and soft types agrees with the results obtained for other properties not reported here. Although on the basis of pulverizing ease there may be a single population with hard and soft end members, in terms of origin the evidence indicates the existence of two distinct clay populations.

Type
General Session
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 11 , February 1962 , pp. 229 - 235
Copyright
Copyright © The Clay Minerals Society 1962

References

Bates, T. F., and Hinckley, D. N. (1959) Mineralogy and petrology of the kaolin clays of the Piedmont and Coastal Plain regions of southeastern United States: Progress Report, 1 June, 1958-1 June, 1959, The Pennsylvania State University, University Park, Pa.Google Scholar
Brindley, G. W. (1951) The kaolin minerals: In "X-ray identification and crystal structures of clay minerals": Mineralogy Society of Great Britain Monograph, Chap. 2, pp. 32–75.Google Scholar
Brindley, G. W., and Kurtossy, S. S. (1961) Quantitative determination of kaolinite by X-ray diffraction: Amer. Min., v. 46, pp. 1205–1215.Google Scholar
Hinckley, D. N. (1961) Mineralogy and petrology of the kaolin clays of the Piedmont and Coastal Plain regions of southeastern United States: Technical Report, The Mineral Industries Experiment Station, College of Mineral Industries, The Pennsylvania State University, University Park, Pennsylvania, Data Appendix A, Sampling plan 3, p. 17.Google Scholar
Klinefelter, T. A., O'Meara, R. C., Truesdell, G. C., and Gottlieb, S. (1943) Hard and soft kaolins of Georgia: U.S. Bur. Mines Rept. Inv. 3682, 20 pp.Google Scholar
Ladd, G. E. (1898) A preliminary report on a part of the clays of Georgia: Georgia Geo. Survey Bull. 6-A, 203pp.Google Scholar
Murray, H. H., and Lyons, S. C. (1956) Correlation of paper-coating quality with degree of crystal perfection of kaolinite: in Clays and Clay Minerals, Natl. Res. Council, pub. 456, pp. 31–40.Google Scholar
Quenouille, M. H. (1952) Associated Measurements: Butterworth's Scientific Publications, London, England, p. 37.Google Scholar