The Mössbauer spectrum of a ferrian muscovite and its implications in the assignment of sites in dioctahedral micas
- 1 March 1976
- journal article
- Published by Mineralogical Society in Mineralogical Magazine
- Vol. 40 (313), 513-517
- https://doi.org/10.1180/minmag.1976.040.313.11
Abstract
Summary: A muscovite that contains iron almost entirely in the ferric form has been studied by M6ssbauer spectroscopy. It is established that Fe3+ ions in the sites with cis hydroxyl groups have similar parameters in both muscovite and biotite. By assuming that Fe2+ ions will also have similar parameters for these sites in both minerals the M6ssbauer results of other workers have been reinterpreted. This new interpretation, which is in complete agreement with the X-ray structural analysis of Radoslovich (1960), indicates that in muscovite the sites with cis hydroxyl groups are filled in preference to those with trans hydroxyls. These sites are occupied primarily by trivalent ions. There is possibly a preference for divalent ions by the unique sites with trans hydroxyl groups, but occupation of these sites appears to occur only when the other sites have been filled.Keywords
This publication has 8 references indexed in Scilit:
- A study of the weathering of a biotite using the Mössbauer effectMineralogical Magazine, 1973
- Weathering of Mica Flakes in Two Soils in Northern Greece Evaluated by Mössbauer and Conventional TechniquesSoil Science Society of America Journal, 1972
- The Mössbauer spectra of several micas and related mineralsMineralogical Magazine, 1970
- Mössbauer study of iron-rich biotitesChemical Physics Letters, 1969
- Applications of the Mössbauer effect to silicate mineralogy—I. Iron silicates of known crystal structureGeochimica et Cosmochimica Acta, 1967
- Substitution by Iron in KaoliniteNature, 1967
- Mössbauer Effect in Metallic IronPhysical Review B, 1962
- The structure of muscovite, KAl2(Si3Al)O10(OH)2Acta Crystallographica, 1960