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The Mössbauer Spectrum of Illite

Published online by Cambridge University Press:  09 July 2018

E. Murad
Lehrstuhl für Bodenkunde, T.U. München, D-85350 Freising-Weihenstephan
U. Wagner
Lehrstuhl für Bodenkunde, T.U. München, D-85350 Freising-Weihenstephan


Eight illites were studied by Mössbauer spectroscopy at room temperature and 4.2 K. On the basis of their Fe contents, these illites can be divided into an Fe-rich (>5 wt% Fe) and an Fe-poor (<1 to ∼3 wt% Fe) group. Mössbauer spectroscopy showed that the Fe-rich illites had lower proportions of divalent Fe than their Fe-poor counterparts. Slow paramagnetic relaxation was observed in the Fe-poor illites and must be accounted for when fitting the spectra. Two samples contained iron oxides that were superparamagnetic and thus, although contributing to the Fe3+ doublets, escaped detection at room temperature. Structural Fe3+ had a temperature-independent quadrupole splitting that was lower for the Fe-rich illites (0.59 mm/s) than that of the Fe-poor illites (0.73 mm/s). The Fe2+ quadrupole splittings were higher at 4.2 K than at room temperature, but the Fe-rich illites again had lower Fe2+ quadrupole splittings both at room temperature (2.69 vs. 2.88 mm/s) and at 4.2 K (2.96 mm/s vs. 3.08 mm/s). Distinction of Fe sites in the illites with cis- and trans-OH coordination was not possible. The presence of tetrahedral Fe3+ was observed only in the most Fe-rich sample (8.4 wt% Fe).

Research Article
Copyright © The Mineralogical Society of Great Britain and Ireland 1994

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Bailey, S.W., Brindley, G.W., Fanning, D.S., Kodama, H. & Martin, R. (1984) Report of the Clay Minerals Society Nomenclature Committe for 1982 and 1983. Clays Clay Miner. 32, 239240.CrossRefGoogle Scholar
Coey, J.M.D. (1980) Clay minerals and their transformations studied with nuclear techniques. Atomic Energy Rev. 18, 73124.Google Scholar
Dollase, W.A. (1975) Statistical limitations of Mössbauer spectral fitting. Am. Miner.. 60, 257264.Google Scholar
Eberl, D.D., Srodon, J., Lee, M., Nadeau, P.H. & Northrop, H.R. (1987) Seriref from the Silverton Caldera, Colorado: Correlation among structure, composition, origin, and particle thickness. Am. Miner.. 72, 914934.Google Scholar
Ericsson, T., Wappling, R. & Punakivi, K. (1977) Mössbauer spectroscopy applied to clay and related minerals. Geol. Forening. Stockholm Forhand.. 99, 229244.CrossRefGoogle Scholar
Evans, B.J., Johnson, R.G., Senftle, F.E., Blaine Cecil, C. & Dulong, F. (1982) The 57Fe Mössbauer parameters of pyrite and marcasite with different provenances. Geo- chim. Cosmochim. Act.. 46, 761775.CrossRefGoogle Scholar
Fysh, S.A., Cashion, J.D. & Clark, P.E. (1983) Mössbauer effect studies of iron in kaolin. I. Structural iron. Clays Clay Miner.. 31, 285292.CrossRefGoogle Scholar
Goodman, B.A. & Nadeau, P.H. (1988) Identification of oxide impurity phases and distribution of structural iron in some diagenetic illitic clays as determined by Mössbauer spectroscopy. Clay Miner. 23, 301308.CrossRefGoogle Scholar
Grim, R.E., Bray, R.H. & Bradley, W.F. (1937) The mica in argillaceous sediments. Am. Miner.. 22, 813829.Google Scholar
Hargraves, P., Rancourt, D.G. & Lalonde, A.E. (1990) Single-crystal Mössbauer study of phlogopite mica. Can. J. Phys.. 68, 128144.Google Scholar
Holmgren, G.G.S. (1967) A rapid citrate-dithionite extractable iron procedure. Soil Sci. Soc. Am. Proc.. 31, 210211.Google Scholar
Johnston, J.H. & Cardile, C.M. (1987) Iron substitution in montmorillonite, illite, and glauconite by 57Fe Mössbauer spectroscopy. Clays Clay Miner. 35, 170176.CrossRefGoogle Scholar
Knorr, W. (1984) Petrographic, Tektonik und Geochemie des Donaurandbruches ostlich von Regensburg. PhD thesis, Technische Universität Miinchen, Germany.Google Scholar
Kodama, H. (1965) Crystal distortion of seriref. Clay Sci. 2, 121131.Google Scholar
Kodama, H. & Brydon, J.E. (1968) Dehydroxylation of microcrystalline muscovite. Trans. Faraday Soc.. 64, 31123118.CrossRefGoogle Scholar
Kodama, H. & Dean, R.S. (1980) Illite from Eldorado, Saskatchewan. Can. Miner.. 18, 109118.Google Scholar
Kubler, B. (1964) Les argiles, indicateurs de metamor- phisme. Rev. Inst. Franļ. Petrol.. 19, 10931112.Google Scholar
Laves, D. & Jahn, G. (1972) Zur quantitativen rontgenographischen Bodenton-Mineralanalyse. Arch. Acker- Pflanzenbau Bodenk.. 16, 735739.Google Scholar
Malathi, N., Puri, S.P. & Saraswai, I.P. (1969) Mössbauer studies of iron in illite and montmorillonite. J. Phys. Soc. Japa.. 26, 680683.CrossRefGoogle Scholar
Mehra, O.P. & Jackson, M.L. (1960) Iron oxide removal from soils and clays by a dithionite-citrate system buffered with sodium bicarbonate. Clays Clay Miner. 7, 317327.CrossRefGoogle Scholar
Michael, P.J. & McWhinnie, W.R. (1989) Mössbauer and ESR studies of the thermochemistry of illite and montmorillonite. Polyhedro. 8, 27092718.CrossRefGoogle Scholar
Mineeva, R.M. (1978) Relationship between Mössbauer spectra and defect structure in biotites from electric field gradient calculations. Phys. Chem. Miner.. 2, 267277.CrossRefGoogle Scholar
Murad, E. & Wagner, U. (1989) Pure and impure clays and their firing products. Hyperfine Interact. 45, 161177.CrossRefGoogle Scholar
Murad, E. & Wagner, U. (1991) Mössbauer spectra of kaolinite, halloysite and the firing products of kaolinite: new results and a reappraisal of published work. N. Jb. Miner. Abh.. 162, 281309.Google Scholar
Norrish, K. & Pickering, J.G. (1983) Clay minerals, Pp. 281308. in: Soils: an Australian Viewpoint. Division of Soils, CSIRO, Melbourne, Australia.Google Scholar
Olphen, H. & van Fripiat, J.J. (1979) Data Handbook for Clay Materials and other Non-Metallic Minerals. Perga- mon Press, Oxford.Google Scholar
Raclavský, K., Sitek, J. & Lipka, J. (1975) Mössbauer spectroscopy of iron in clay minerals. Proc. 5th Int. Conf. Mössbauer Spectroscopy, Bratislava.. 2, 368371.Google Scholar
Rancourt, D.G., Dang M.-Z. & Lalonde, A.E. (1992) Mössbauer spectroscopy of tetrahedral Fe3+ in trioctahedral micas. Am. Miner.. 77, 3443.Google Scholar
Russell, P.E. & Montano, P.A. (1978) Magnetic hyperfine interactions of iron containing minerals in coals. J. Appl. Phys.. 49, 15731575.CrossRefGoogle Scholar
Saporoschenko, M., Twardowska, H., Smith, G.V., Hinckley, C.C., Shiley, R.H. & White, W.A. (1980) Mössbauer studies of illites and heat-treated illite as related to coal- conversion processes. Fue. 59, 767771.CrossRefGoogle Scholar
Shannon, R.D. (1976) Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides. Acta Cryst. .. 32, 751767.CrossRefGoogle Scholar
Srodon, J. & Eberl, D.D. (1984) Illite. Pp. 495544. in: Micas (S.W. Bailey, editor), Reviews in Mineralogy 13. Mineralogical Society of America, Washington, DC.Google Scholar
Staniek, H. & Friedrich, R. (1986) The determination of layer charge by curve-fitting of Lorentz- and polarization- corrected X-ray diagrams. Clay Miner. 21, 183190.CrossRefGoogle Scholar
Stern, W.B., Mullis, J., Rahn, M. & Frey, M. (1991) Deconvolution of the first “illite” basal reflection. Schweiz. Miner. Petrog. Mitt. 71, 453—162.Google Scholar
St. Pierre, T.G., Singh, B., Webb, J. & Gilkes, B. (1992) Mössbauer spectra of soil kaolins from south-western Australia. Clays Clay Miner. 40, 341346.CrossRefGoogle Scholar
Wagner, U., Knorr, W., Forster, A., Murad, E., Salazar, R. & Wagner, F.E. (1988) Mössbauer study of illite associated with iron oxi-hydroxides. Hyperfine Interact. 41, 855858.CrossRefGoogle Scholar
Wagner, U., Murad, E., Knorr, W. & Wagner, F.E. (1990) Mössbauer study of illitic clays containing iron-rich impurities. Hyperfine Interact. 57, 23132317.CrossRefGoogle Scholar
Weaver, C.E., Wampler, J.M. & Pecuil, T.E. (1967) Mössbauer analysis of iron in clay minerals. Scienc. 156, 504508.CrossRefGoogle ScholarPubMed
Wentworth, S.A. (1970) Illite. Clay Sci. 3, 140155.Google Scholar
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