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Sur les variations chimiques et structurales des differents minaraux des argiles

Published online by Cambridge University Press:  14 March 2018

Ugo Ventriglia
Ugo Ventriglia*
Affiliation:
Institut de Minéraloglede l'Université, de Rome
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Abstract

  1. (1) Pholerite is considered to have the kaolinite structure with partial Al-for-Si substitution.

  2. (2) Anauxite has “holes” in the octahedral positions; the idea of intercalated silica layers is untenable.

  3. (3) Montmorillonite minerals probably form continuous series with micas, talc and pyrophyllite. The swelling properties of montmorillonite may be due to the presence of positive inter-layer ions in excess, together with some OH groups.

  4. (4) A chlorite-talc series probably exists also, and vermiculite may have the same relation to this series as montmorillonite has to the mica-talc series.

Type
Research Article
Information
Clay Minerals Bulletin , Volume 2 , Issue 12 , December 1954 , pp. 179 - 183
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1954

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References

Références

Barshad, I., 1948. Am. Min., 33, 655-78; 1949. ibid., 34, 675-84; 1950, ibid., 35, 225-38.Google Scholar
Brindley, G. W., 1951. “X-ray identification and Crystal Structures of Clay Minerals.” (Min. Soc, London), pp. 212-6.Google Scholar
Grim, R. E., 1953. “Clay Mineralogy.” (New York), pp. 68-9.Google Scholar
Gruner, J. W., 1934. Am. Min., 19, 557-75; 1939, ibid., 24, 428-33.Google Scholar
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Ventriglia, U., 1945a. Boll. Soc. Geol. It., 64, 52–60; 1945b, Rie. Scient. e Ric, 15, 413-4.Google Scholar
Walker, G. F., 1949. Nature, 163, 726; 1951, “X-ray identification and Crystal Structures of Clay Minerals.” (Ed. Brindley, G. W., Min. Soc, London), Chap. VII., pp. 199–223.Google Scholar