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Unusual X-Ray Characteristics of Vermiculite from Wiry, Lower Silesia, Poland

Published online by Cambridge University Press:  28 February 2024

Boris A. Sakharov ,
Elżbieta Dubińska ,
Paweł Bylina  and
Grzegorz Kaproń
Boris A. Sakharov
Affiliation:
Geological Institute, Russian Academy of Sciences, Pyzhevsky Street 7, 109017, Moscow, Russia
Elżbieta Dubińska
Affiliation:
Institute of Geochemistry, Mineralogy and Petrology, Faculty of Geology, Warsaw University, al. Zwirki i Wigury 93, 02-089 Warsaw, Poland
Paweł Bylina
Affiliation:
Institute of Geological Sciences, Polish Academy of Sciences, ul. Twarda 51/55, 00-818 Warsaw, Poland
Grzegorz Kaproń
Affiliation:
Institute of Geochemistry, Mineralogy and Petrology, Faculty of Geology, Warsaw University, al. Zwirki i Wigury 93, 02-089 Warsaw, Poland
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Abstract

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Coarse-grained vermiculite from a serpentinite-pegmatite thermal zone displays a rational series of narrow 14.4 Å basal reflections and an unusual broad 28 Å peak. X-ray diffraction simulations and fitting techniques show that the 28 Å peak is related to 28 Å domains consisting of elongated 2:1 layers of different lengths. The domains are located at the crystal edges of the vermiculite.

Keywords

Crystal EdgeInterstratified MineralVermiculiteXRD Characteristics
Type
Research Article
Information
Clays and Clay Minerals , Volume 49 , Issue 3 , June 2001 , pp. 197 - 203
Copyright
Copyright © 2001, The Clay Minerals Society

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