Letter | Published:

Electron Diffraction by Clay Minerals with a Fibrous or Rod-like Habit

Naturevolume 168pages380381 (1951) | Download Citation



CLAY particles deposited from a suspension on to a cellulose film are usually strongly orientated with their basal (001) planes parallel to the film. Electron diffraction patterns obtained with the beam normal to the film reveal only the (hk0) diffractions. For most types of clay the corresponding spacings are so alike that such diffraction patterns do not help in identification.

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  1. 1

    Bradley, W. F., Amer. Min., 25, 405 (1940).

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  1. R. P. MITRA: On study leave from the University of Delhi.


  1. Applied Physical Chemistry Laboratories, Imperial College, London, S.W.7

    • D. R. KNAPP
    •  & R. P. MITRA


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