Some Naturally Occurring Illite-Smectite Interstratifications

L. Heller-Kallai
1972 Clays and clay minerals  
Two different types of interstratified illite-smectite are found in a section of Paleozoic sediments in the Negev, Israel. One of these is detectable only by a decrease in peak width and a concomitant increase in symmetry of the 10 A peak on glycolation. This material is regarded as illite, randomly interstratified with about 20 per cent expanding layers.
doi:10.1346/ccmn.1972.0200308 fatcat:otorlob6jbc27brtjszrcl36da