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Crystallochemistry of Fe-rich palygorskite from eastern China

  • Z. Li (a1), K. He (a1), L. Yin (a1) (a2), F. Xiong (a3) and Y. C. Zheng (a1)...


Iron cations in the octahedral sheet are a disadvantage to the industrial application of palygorskite clays. In this study, a palygorskite sample from eastern China (Mayaoshan deposit, Jiangsu Province) is shown to have an Fe content that is much greater than usual. The structural formula of the Fe-rich palygorskite sample was established as (Si7.48Al0.52) (Al1.24Fe0.94Mg1.77Ti0.031.02)O20(OH)2(OH2)4. The palygorskite is seen to be dioctahedral according to the structural formula, consistent with Fourier transform infrared data. Occurrences of AlFe3+ɏOH and Fe3+Fe3+ɏOH vibrations in the OH-stretching and -bending regions show that Fe atoms occupy inner sites of octahedral sheets. A Mössbauer spectrum confirmed that Fe ions occupy inner octahedral sites as trivalent Fe cations (Fe3+).


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Augsburger, M.S., Predregosa, J.C., Strasser, E., Perino, E. & Mercader, R.C. (1998) FTIR and Mössbauer investigation of a substituted palygorskite: silicate with a channel structure. Journalof Physics and Chemistry of Solids, 59, 175185.
Bailey, S.W. (1984) Structure of layer silicates. Pp. 2115 in: Crystal Structures of Clay Minerals and their X-ray Identification (Brindley, G.W. & Brown, G., editors). Monograph 5, Mineralogical Society, London.
Blanco, C., González, F., Pesquera, C., Benito, I., Mendioroz, S. & Pajares, J.A. (1989) Difference between one aluminic palygorskite and another magnesic by infrared spectroscopy. Spectroscopy Letters, 22, 659673.
Blanco, C., Herrero, J., Mendioroz, S. & Pajares, J.A. (1988) Infrared studies of surface acidity and reversible folding in palygorskite. Clays and Clay Minerals, 36, 659673.
Bradley, W.F. (1940) The structural scheme of attapulgite. American Mineralogist, 25, 405410.
Cai, Y. & Xue, J. (2001) Composition and infrared spectra of Guanshan palygorskite clay (in Chinese). Acta Mineralogica Sinica, 21, 323329.
Cai, Y. & Xue, J. (2004) Dissolution behavior and dissolution mechanism of palygorskite in HCl solution. Progress in NaturalScience, 14, 235240.
Chahi, A., Petit, S. & Decarreau, A. (2002) Infrared evidence of dioctahedral-trioctahedral site occupancy in palygorskite. Clays and Clay Minerals, 50, 306313.
Drits, V.A. & Aleksandrova, V.A. (1966) The crystallo-chemical nature of palygorskite. Zapiske Vsesoyuznogo Mineralogecheskogo Obtechestva, 95, 551560.
Drits, V.A. & Sokolova, G.V. (1971) Structure of palygorskite. Soviet Physica Crystallographiya, 16, 183185.
Farmer, V.C. (1974) The layer silicates. Pp. 331364 in: The Infrared Spectra of Minerals. Monograph 4, Mineralogical Society, London.
Galán, E. & Carretero, I. (1999) A new approach to composition limits for sepiolite and palygorskite. Clays and Clay Minerals, 47, 399409.
García-Romero, E., Suárez, M. & Bustillo, M.A. (2004) Characteristics of a Mg-palygorskite in Miocene rocks, Madrid Basin (Spain). Clays and Clay Minerals, 52, 484494.
Gionis, V., Kacandes, G.H., Kastritis, I.D. & Chryssikos, G.D. (2006) On the structure of palygorskite by mid-and near-infrared spectroscopy. American Mineralogist, 91, 11251133.
Güven, N. (1992) The coordination of aluminum ions in the palygorskite structure. Clays and Clay Minerals, 40, 457461.
Heller-Kallai, L. & Rozenson, I. (1981a) The use of Mössbauer spectroscopy of Fe in clay mineralogy. Physics and Chemistry of Minerals, 7, 223238.
Heller-Kallai, L. & Rozenson, I. (1981b) Mössbauer studies of palygorskite and some aspects of palygorskite mineralogy. Clays and Clay Minerals, 29, 226232.
Khorami, J. & Lemieux, A. (1989) Comparison of attapulgites from different sources using TG/DTG and FTIR. Thermochimica Acta, 138, 97105.
Long, D.G.F., McDonald, A.M. & Yi, F. (1997) Palygorskite in palaeosols from the Miocene Xiaocaowan Formation of Jiangsu and Anhui Provinces, P.R. China. Sedimentary Geology, 112, 281295.
Madejová, J. & Komadel, P. (2001) Baseline studies of the Clay Minerals Society source clays: infrared studies. Clays and Clay Minerals, 49, 410432.
Pushpaletha, P., Rugmini, S. & Lalithambika, M. (2005) Correlation between surface properties and catalytic activity of clay catalysts. Applied Clay Science, 30, 141153.
Russell, J.D. & Fraser, A.R. (1994) Infrared methods. Pp. 1167 in: Clay Mineralogy: Spectroscopic and ChemicalDeterminative Methods (Wilson, M.J., editor). Chapman & Hall, London.
Serna, C., VanScoyoc, G.E. & Ahlrichs, J.L. (1977) Hydroxyl groups and waters in palygorskite. American Mineralogist, 62, 784792.
Suárez, M. & García-Romero, E. (2006) FTIR spectroscopic study of palygorskite: influence of the composition of the octahedral sheet. Applied Clay Science, 31, 154163.
Van Scoyoc, G.E., Serna, C. & Ahlrichset, J.L. (1979) Structural changes in palygorskite during dehydration and dehydroxylation. American Mineralogist, 64, 215223.
Woessner, D.E. (1989) Characterization of clay minerals by 27Al nuclear magnetic resonance spectroscopy. American Mineralogist, 74, 203215.
Xiong, F., Yin, L. & Cai, Y. (2005) Quantitative analysis of X-ray diffraction for palygorskite within attapulgite clay (in chinese). Geological Journal of China Universities, 11, 453458.
Zheng, Z. (1997) The chemistry of palygorskite clays. Pp. 2645 in: Palygorskites of China (Zheng, Z.L. and Song, J.X., editors). Geological Press, Beijing, (in Chinese).


Crystallochemistry of Fe-rich palygorskite from eastern China

  • Z. Li (a1), K. He (a1), L. Yin (a1) (a2), F. Xiong (a3) and Y. C. Zheng (a1)...


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