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A lithium-bearing aluminian regular mixed layer montmorillonite-chlorite from Huy, Belgium

Published online by Cambridge University Press:  09 July 2018

G. Brown ,
P. Bourguignon  and
J. Thorez
G. Brown
Affiliation:
Rothamsted Experimental Station, Harpenden, Herts, England
P. Bourguignon
Affiliation:
Mineralogical Institute, State University of Liège, Belgium
J. Thorez
Affiliation:
Mineralogical Institute, State University of Liège, Belgium
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Abstract

A bluish-green clay found in veins cutting across brecciated slates of the Llanvirnian stage at Huy, Belgium, is shown by X-ray diffraction and chemical analysis to be a lithium-bearing, aluminium-rich, regular mixed layer montmorillonite-chlorite with associated pyrophyllite, nacrite and quartz and smaller amounts of calcite and ankerite. The cation exchange capacity of the purified air-dry magnesium saturated clay is 49 mEq/100 g and its structural formula is

The problem of the nomenclature of regular mixed layer montmorillonite-chlorites is discussed.

Type
Research Article
Information
Clay Minerals , Volume 10 , Issue 3 , July 1974 , pp. 135 - 144
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1974

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