Variations in interlayer cation sites of clay minerals as studied by 133Cs MAS nuclear magnetic resonance spectroscopy

C. A. Weiss, R. J. Kirkpatrick, S. P. Altaner

Research output: Contribution to journalArticlepeer-review


This paper describes the results of a 133Cs MAS NMR study of a number of Cs-exchanged clay minerals and the relationship of the 133Cs chemical shift to chemical and structural parameters. In hectorite, Cs occupies a number of different sites depending on the structure, composition, and hydration state of the clay. Increased rotational distortions of the basal O sheet, total layer charge, and tetrahedral Al3+ substitution for Si4+ correlate with increased deshielding of the 133Cs chemical shifts for both hydrated slurry and dehydrated samples. -from Authors

Original languageEnglish (US)
Pages (from-to)970-982
Number of pages13
JournalAmerican Mineralogist
Issue number9-10
StatePublished - Jan 1 1990

ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology


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