Scanning Electron Microscopy of Clays and Clay Minerals

B. F. Bohor and Randall E. Hughes
Illinois State Geological Survey, Natural Resources Building, Urbana, III. 61801

Abstract: The scanning electron microscope (SEM) proves to be ideally suited for studying the configuration, texture, and fabric of clay samples. Growth mechanics of crystalline units—interpenetration and interlocking of crystallites, crystal habits, twinning, helical growth, and topotaxis—also are uniquely revealed by the SEM.

Authigenic kaolins make up the bulk of the examples because their larger crystallite size, better crystallinity, and open texture make them more suited to examination by the SEM than most other clay mineral types.

Clays and Clay Minerals; March 1971 v. 19; no. 1; p. 49-54; DOI: 10.1346/CCMN.1971.0190105
© 1971, The Clay Minerals Society
Clay Minerals Society (www.clays.org)