Abstract
X-ray diffraction patterns and cation-exchange data are presented for centrifuged Wyoming bentonite to demonstrate the heterogeneous nature of montmorillonite. It has been shown that in the bentonite samples studied, the montmorillonite can be separated into at least two fractions. One phase consists of essentially a sodium montmorillonite while the other consists of essentially a calcium-magnesium montmorillonite. It is postulated that these differences occur because of differences in the isomorphous substitutions within the montmorillonite crystal lattice.
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Beavers, A. H., and Larsen, B. L., 1953, Electrophoresis of clays by the Schlieren moving boundary procedure: Soil Sci. Soc. Am., Proc., v. 17, p. 22–25.
Byrne, P. J. S., 1954, Some observations on montmorillonite organic complexes: in Clays and Clay Minerals, Nat. Acad. Sci.—Nat. Res. Council, pub. 327, p. 241–253.
Cheng, J. L., and Bray, R. N., 1951, Determination of calcium and magnesium in soil and plant material: Soil Sci., v. 72, p. 449–459.
Grim, R. E., 1953, Clay Mineralogy: McGraw-Hill Book Co., Inc., New York, 384 p.
Marshall, C. E., 1949, The colloid chemistry of the silicate minerals: Academic Press, New York, 180 p.
Roth, R. S., 1951, The structure of montmorillonite in relation to the occurrence and properties of certain bentonites: Ph.D. Thesis, University of Illinois, Urbana, Ill.
Williams, F. J., Neznayko, M., and Weintritt, D. J., 1953, The effect of exchangeable bases on the colloidal properties of bentonite: J. Phys. Chem., v. 57, p. 6–10.
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McAtee, J.L. Heterogeneity in Montmorillonite. Clays Clay Miner. 5, 279–288 (1956). https://doi.org/10.1346/CCMN.1956.0050123
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DOI: https://doi.org/10.1346/CCMN.1956.0050123