I.R. Studies of Some Interstratified Minerals of Mica and Montmorillonite*

S. Shimoda and J. E. Brydon
Soil Research Institute, Canada Department of Agriculture, Ottawa, Ontario
* Contribution No. 339.
Present address: Tokyo University of Education, Tokyo. Japan.

Abstract: I.R. band shifts in the 830, 750 and 530 cm−1 regions that occur in interstratified layer silicates on heating were used to characterize the nature of the component layers. Two specimens showed shifts characteristic of 1M illite and montmorillonite. Another specimen was similar to 2M illite even though the proportion of expanding layers was 0·4. The shifts for rectorite and allevardite resembled those of paragonite and 2M illite.

Clays and Clay Minerals; March 1971 v. 19; no. 1; p. 61-66; DOI: 10.1346/CCMN.1971.0190107
© 1971, The Clay Minerals Society
Clay Minerals Society (www.clays.org)