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Imogolite: a unique aluminosilicate

Published online by Cambridge University Press:  09 July 2018

J. D. Russell ,
W. J. McHardy  and
A. R. Fraser
J. D. Russell
Affiliation:
The Macaulay lnstitute ybr Soil Research, Craigiebuckler, Aberdeen
W. J. McHardy
Affiliation:
The Macaulay lnstitute ybr Soil Research, Craigiebuckler, Aberdeen
A. R. Fraser
Affiliation:
The Macaulay lnstitute ybr Soil Research, Craigiebuckler, Aberdeen
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Abstract

The fibrous aluminosilicate imogolite has been studied by electronoptical and infrared absorption methods. Electron diffraction patterns are interpreted in terms of repeat units of 8·4 Å parallel and 23 Å perpendicular to the fibre axis. These spacings can not be reconciled with a continuous silicate chain structure and this conclusion is supported by an Si-O vibration near 930 cm−1. A structure is postulated in which distorted chains of Al-O octahedra are cross-linked through isolated Si2O7 groups.

Multiple OH stretching vibrations indicate different types of OH group in the imogolite structure. Absorption bands near 1000, 700 and 600 cm−1 are sensitive to sample orientation. This is attributed to the morphology and dimensions of the imogolite fibres.

Type
Research Article
Information
Clay Minerals , Volume 8 , Issue 1 , July 1969 , pp. 87 - 99
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1969

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References

Agar, A.W. & Lucas, J.H. (1962) Proc. 5th int. Congr. Electron Microscopy, Philadelphia 1, E2.Google Scholar
Angell, C.L. & Schaffer, P.C. (1965) J. pkys. Chem. 69, 3463.Google Scholar
Aomine, S. & Miyaucht, N. (1965) Soil PI. Fd, Tokyo 11, 212.Google Scholar
Berreman, D.W. (1963) Phys. Rev. 130, 2193.CrossRefGoogle Scholar
Farmer, V.C. (1964) The Chemistry of Cements (Taylor, H. F. W., editor), Vol. 2, p. 289. Academic Press, London.Google Scholar
Farmer, V.C. & Russell, J.D. (1964) Spectrochim. Acta 20, 1149.CrossRefGoogle Scholar
Farmer, V.C. & Russell, J.D. (1966) Spectrochim. Acta 22, 389.Google Scholar
Fleischer, M. (1963) Am. Miner. 48, 434.Google Scholar
Jaritz, G. (1967) Z. Pfl-Ernahr. Dung. Bodenk. 117, 65.CrossRefGoogle Scholar
Kanno, I., Onikura, Y. & Higashi, T. (1968) 9th int. Congr. Soil Sci. 3, 111.Google Scholar
Launer, P.J. (1952) Am. Miner. 37, 764.Google Scholar
Mehra, O.P. & Jackson, M.L. (1960) Clays Clay Miner. 7, 317.Google Scholar
Miyauchi, N. & Aomine, S. (1966) Soil PI. Fd, Tokyo 12, 187.Google Scholar
Pultz, W.W. & Hertl, W. (1966) Spectrochim. Acta 22, 573.CrossRefGoogle Scholar
Summitt, R. (1967) Spectrochim. Acta 23A, 2857.Google Scholar
Wada, K. (1966) Soil PI. Fd, Tokyo 12, 176.Google Scholar
Wada, K. (1967) Am. Miner. 52, 690.Google Scholar
Yoshinaga, N. & Aomine, S. (1962) Soil PI. Fd, Tokyo 8, 114.Google Scholar
Yoshinaga, N., Yotsumoto, H. & IBE, K. (1968) Am. Miner. 53, 319.Google Scholar