A Study of an Interstratified Illite-Montmorillonite Clay from Worcestershire, England

Douglas M. C. MacEwan
Estación Experimental del Zaidín, Granada, Spain

Abstract: This clay has been studied by Fourier transform methods, which show that it is a random interstratification of mica with montmorillonite, subject however to the limiting condition that montmorillonite layers are never contiguous. It is very similar to one of the mixed-layer clays from Kinnekulle, Sweden, described by Mrs. Byström. The “separation rule” is perhaps one of the factors conditioning the appearance of definite stages in the mixed-layer mica-montmorillonite sequence, as noted by Mrs. Byström.

Clays and Clay Minerals; 1955 v. 4; no. 1; p. 166-172; DOI: 10.1346/CCMN.1955.0040122
© 1955, The Clay Minerals Society
Clay Minerals Society (www.clays.org)