Hostname: page-component-848d4c4894-nr4z6 Total loading time: 0 Render date: 2024-04-30T18:06:06.876Z Has data issue: false hasContentIssue false
  • English
  • Français

Differentiation between Endellite-Halloysite and Kaolinite by Treatment with Potassium Acetate and Ethylene Glycol

Published online by Cambridge University Press:  01 January 2024

W. D. Miller  and
W. D. Keller
W. D. Miller
Affiliation:
Department of Geology, University of Missouri, Columbia, Missouri, USA
W. D. Keller
Affiliation:
Department of Geology, University of Missouri, Columbia, Missouri, USA
Get access Rights & Permissions [Opens in a new window]

Abstract

Halloysite and endellite yield 10 Å basal spacings after grinding with potassium acetate (using a modification of Wada’s procedure) and washing with water and ethylene glycol, whereas the basal spacing of kaolinite, similarly treated, remains at 7 Å. The technique applies satisfactorily to sedimentary and hydrothermal halloysites, various commercial kaolins, ball clays, flint and plastic fire clays, and artificially prepared mixtures of halloysite and kaolinite. Similar responses to the treatment by both laboratory-dehydrated endellite (thereby collapsed to 7 Å) and naturally occurring halloysite add support to the concept that endellite is a progenitor of halloysite.

Type
Symposium on Clay-Organic Complexes
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 10 , February 1961 , pp. 244 - 253
Copyright
Copyright © Clay Minerals Society 1961

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Alexander, L. T., Faust, G. T., Hendricks, S. B., Insley, H. and McMurdie, H. F. (1943) Relationship of the clay minerals halloysite and endellite: Amer. Min., v. 28, pp. 1–18.Google Scholar
Andrew, R. W., Jackson, M. L. and Wada, Koji (1960) Intersalation as a technique for differentiation of kaolinite from chloritic minerals by x-ray diffraction: Soil Sci. Soc. Amer. Proc., v. 24, pp. 422–424.CrossRefGoogle Scholar
DeVore, G. W. (1959) The surface chemistry of feldspars as an influence on their decomposition products: in Clays and Clay Minerals, v. 6, Pergamon Press, New York, pp. 26–41.Google Scholar
Garrels, R. M. (1957) Some free energy values from geologic relations: Amer. Min., v. 42, pp. 780–791.Google Scholar
Halm, Louise (1952) Comparative study of American and French flint clays: Bull. Amer. Ceram. Soc., v. 31, pp. 79–84.Google Scholar
Keller, W. D., Westcott, J. F. and Bledsoe, A. O. (1954) The origin of Missouri fireclays in Clays and Clay Minerals, Nat. Acad. Sci.-Nat. Research Council, pub. 327, pp. 7–46.Google Scholar
Keller, W. D. (1961) Hydrothermal kaolinization (endellitization) of volcanic glassy rock: This volume.CrossRefGoogle Scholar
Kerr, P. F., Kulp, J. L. and Hamilton, P. K. (1949) Differential thermal analyses of reference clay mineral specimens: Amer. Petrol. Inst. Proj. 49, Prelim. Rpt. No. 3, New York.Google Scholar
Ponder, Herman and Keller, W. D. (1960) Geology, mineralogy, and genesis of selected fireclays from Latah County, Idaho: in Clays and Clay Minerals, v. 8, Pergamon Press, New York, pp. 44–62.CrossRefGoogle Scholar
Ross, C. S. and Kerr, P. F. (1934) Halloysite and allophane: U.S. Geol. Survey Prof. Paper 185-G, pp. 135–148.CrossRefGoogle Scholar
Sand, L. B. (1956) On the genesis of residual kaolins: Amer. Min., v. 41, pp. 28–40.Google Scholar
Speil, Sidney, Berkelhamer, L. H., Pask, J. A. and Davies, Ben (1945) Differential thermal analysis; its application to clays and other aluminous minerals: U.S. Bur. Mines, Tech. Paper 664, 81 pp.Google Scholar
Wada, Koji (1961) Lattice expansion of kaolin minerals by treatment with potassium acetate: Amer. Min., v. 46, pp. 78–91.Google Scholar