Hostname: page-component-586b7cd67f-2brh9 Total loading time: 0 Render date: 2024-11-23T19:36:29.494Z Has data issue: false hasContentIssue false
  • English
  • Français

Review of the Relationships in the Montmorillonite Group of Clay Minerals

Published online by Cambridge University Press:  01 January 2024

Clarence S. Ross
Clarence S. Ross*
Affiliation:
U.S. Geological Survey, Washington, D.C., USA
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Since the publication of the paper on the minerals of the montmorillonite group by Ross and Hendricks (1945) some species have been added to the group, and minor changes in the acceptable species have become advisable. No radical changes are proposed, but a review of the members and their grouping will be presented. The acceptable dioctahedral members of the group appear to be montmorillonite, nontronite and volchonskoite. Beidellite should be discontinued. The acceptable trioetahedral members of the group appear to include saponite, hectorite, sauconite, stevensite and medmontite. Griffithite is probably a useful term for an iron-rich saponite. Representative chemical analyses and formulas have been assembled to illustrate relationships.

Type
Article
Information
Clays and Clay Minerals (National Conference on Clays and Clay Minerals) , Volume 7 , February 1958 , pp. 225 - 229
Copyright
Copyright © Clay Minerals Society 1958

Footnotes

Publication authorized by the Director, U.S. Geological Survey.

References

Chukhrov, F. V. and Anosov, F. Ya. (1950) Medmontite, a copper bearing mineral of the montmorillonite group: Vses. Mineralog. Obshch. Zapiski, ser. 2, v. 79, no. 1, pp. 23–27. (In Russian.).Google Scholar
Dimitrov, Strashimir (1942) Chromhaltige Tonminerale und Nickel-Asbolan in der Umgebung von Nevrokop: Ann. Univ. Sofia, II. Fac. Phys-Math., Livre 3, Sci. Nat., v. 38 (for 1941-42), pt. 3, pp. 207–224 (In Bulgarian), pp. 225-226 (German summary); (1948) Min. Abstr., v. 10, p. 300.Google Scholar
Faust, G. T. (1955) Thermal analysis and x-ray studies of griffithite: J. Wash. Acad. Sci., v. 45, pp. 66–70.Google Scholar
Faust, G. T. and Murata, K. J. (1953) Stevensite, redefined as a member of the montmorillonite group: Amer. Min., v. 38, pp. 973–987.Google Scholar
Foster, M. D. (1951) The importance of exchangeable magnesium and cation-exchange capacity in the study of montmorillonitic clays: Amer. Min., v. 36, pp. 717–730.Google Scholar
Foster, M. D. (1953) Geochemical studies of clay minerals. III. The determination of free silica and free alumina in montmorillonites: Geochim. Cosmochim. Acta, v. 3, pp. 143–154.CrossRefGoogle Scholar
Foster, M. D. (1954) The relation between “ illite,” montmorillonite, and beidellite: in Clays and Clay Minerals, Natl. Acad. Science—Natl. Research Council, pub. 327, pp. 386–397.Google Scholar
Genth, F. A. (1875) Preliminary report on the mineralogy of Pennsylvania: Pennsylvania Geol. Survey, 2dB, pp. 1–206.Google Scholar
Grim, R. E. and Rowland, R. A. (1942) Differential thermal analysis of clay minerals and other hydrous materials. II: Amer. Min., v. 27, pp. 801–818.Google Scholar
Larsen, E. S. and Steiger, G. (1928) Dehydration and optical studies of alunogen, nontronite, and griffithite: Amer. J. Sci., ser. 5, v. 15, pp. 1–19.Google Scholar
Palache, Charles and Yassar, H. E. (1925) Some minerals of the Keweenawan copper deposits; pumpellyite, a new mineral; sericite; saponite: Amer. Min., v. 10, pp. 412–418.Google Scholar
Ross, C. S. (1946) Sauconite—a clay mineral of the montmorillonite group: Amer. Min., v. 31, pp. 411–424.Google Scholar
Ross, C. S. and Hendricks, S. B. (1945) Minerals of the montmorillonite group, their origin and relation to soils and clays: U.S. Geol. Survey, Prof. Paper 205-B, pp. 23–79.CrossRefGoogle Scholar
Roy, Rustum and Sand, L. B. (1956) A note on some properties of synthetic montmorillonites: Amer. Min., v. 41, pp. 505–509.Google Scholar