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Kaolinite/Montmorillonite resembles beidellite

AuthorsCuadros, Javier; Delgado Huertas, Antonio ; Cardente, A.; Reyes, Emilio; Linares, J.
Greene-Kelly test
Issue DateOct-1994
PublisherClay Minerals Society
CitationClays and Clay Minerals 42(5): 643-651 (1994)
AbstractA number of smectitic samples from Almeria (SE Spain) were studied by chemical analysis, DTA, TG, XRD (oriented aggregates with ethylene glycol treatment and Greene-Kelly test), FTIR and MAS NMR. Chemically they resembled a beidellite-montmorillonite series, displaying DTA/TG characteristics already quoted in the literature in beidellite descriptions. They did not swell after the Greene- Kelly test, as it has also been reported for some beidellites. Nevertheless XRD of the oriented, glycolated samples, FTIR, MAS NMR and revision of the chemical analysis demonstrated that they were mixedlayered kaolinite/montmorillonite. It is possible that some of the reported beidellites in the literature are kaolinite/montmorillonite. Beidellite characterization must be supported by several different techniques.
Description9 páginas, 9 figuras, 2 tablas.
Publisher version (URL)http://www.clays.org/JOURNAL/archive/TOC/TOC42/TOC42_5.htm
Appears in Collections:(EEZ) Artículos
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