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Experimental Transformation of 2M Sericite into a Rectorite-Type Mixed-Layer Mineral by Treatment with Various Salts

Published online by Cambridge University Press:  01 July 2024

Katsutoshi Tomita
Katsutoshi Tomita*
Affiliation:
Institute of Earth Sciences, Kagoshima University, Kagoshima, Japan
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Abstract

Some dehydroxylated sericites were boiled with solutions of various salts. A rectorite-like regular mixed-layer was formed when 2M sericite was treated with solution containing salts such as NaNO3, Na2SO4, CaSO4, CaCl2, MgCl2 and MgSO4 respectively. A random mica/montmorillonite mixed-layer was formed from 1M sericite. In order to change the 2M sericite into a regularly interstratified mineral, they are heated to the temperature range of dehydroxylation. The formation of a regularly interstratified mineral from 2M sericite can be explained by the change in the (OH) bond direction after the extraction of the potassium ion.

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Type
Research Article
Information
Clays and Clay Minerals , Volume 25 , Issue 4 , August 1977 , pp. 302 - 308
Copyright
Copyright © Clay Minerals Society 1977

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