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A New Approach to Compositional Limits for Sepiolite and Palygorskite

Published online by Cambridge University Press:  28 February 2024

Emilio Galan  and
Ma Isabel Carretero
Emilio Galan
Affiliation:
Departamento Cristalografía y Mineralogía, Facultad de Química, Universidad de Sevilla, Apdo. 553, Sevilla 41071, Spain
Ma Isabel Carretero
Affiliation:
Departamento Cristalografía y Mineralogía, Facultad de Química, Universidad de Sevilla, Apdo. 553, Sevilla 41071, Spain
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Abstract

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Most bulk chemical analyses of sepiolite and palygorskite available in the literature are erroneous because samples analyzed are admixtures of minerals that are difficult to separate or identify by other techniques. Some chemical analyses performed on selected individual particles by energy dispersive X-ray analysis (EDX) are also influenced by the same problem. Chemical analyses are summarized for sepiolite and palygorskite reported in the literature (bulk and EDX analyses). The analyses are evaluated by comparison to three sepiolite and three palygorskite pure samples analyzed by EDX techniques. Results indicate that sepiolite is a true trioctahedral mineral, very pure (near end-member) with negligible structural substitution and with eight octahedral positions filled with magnesium, close to the theoretical formula Mg8Si12O30(OH)4(OH2)4(H2O)8. Palygorskite is intermediate between di- and trioctahedral phyllosilicates. The octahedral sheet contains mainly Mg, Al, and Fe with a R2/R3 ratio close to 1, and with four of the five structural positions occupied. The theoretical formula is close to (Mg2R23+?1)(Si8-xAlx)O20(OH)3(OH2)4·R2+x/2(H2O)4, where x = 0–0.5. Sepiolite and palygorskite are thus more compositionally limited than previously reported.

Keywords

Chemical CompositionPalygorskiteSepiolite
Type
Research Article
Information
Clays and Clay Minerals , Volume 47 , Issue 4 , August 1999 , pp. 399 - 409
Copyright
Copyright © 1999, The Clay Minerals Society

References

Abudelgawad, G. Viani, B.E. and Dixon, J.B., 1985 Palygorskite separation from dodecylammonium-treated clays Clays and Clay Minerals 33 438–442 10.1346/CCMN.1985.0330510.CrossRefGoogle Scholar
Aqrawi, A.A.M., 1993 Palygorskite in the recent fluvio-lacustrine and deltaic sediments of southern Mesopotamia Clay Minerals 28 153–159 10.1180/claymin.1993.028.1.15.CrossRefGoogle Scholar
Argast, S., 1989 Expandible sepiolite from Ninety east Ridge, Indian Ocean Clays and Clay Minerals 37 371–376 10.1346/CCMN.1989.0370411.CrossRefGoogle Scholar
Bastida, J. Besteiro, J. Lago, M. Pocovi, A. and Reventes, M., 1994 Occurrence of fibrous sepiolite in alkaline basalt in the Valley of Alfara (Baix Ebre, Tarragona, Spain) Clay Minerals 29 137–142 10.1180/claymin.1994.029.1.16.CrossRefGoogle Scholar
Botha, G.A. and Hughes, J.C., 1992 Pedologenic palygorskite and dolomite in a late Neogene sedimentary succession, Northwestern Transvaal, South Africa Geoderma 53 139–154 10.1016/0016-7061(92)90027-5.CrossRefGoogle Scholar
Bradley, W.F., 1940 The structural scheme of attapulgite American Mineralogist 25 405–410.Google Scholar
Brauner, K. and Preisinger, A., 1956 Struktur und enstehung des sepioliths Tschermaks Mineralogische und Petrographische Mitteilungen 6 120–140 10.1007/BF01128033.CrossRefGoogle Scholar
Caillère, S., 1934 Comptes Rendus de l’Academie des Sciences, Paris 199 1626–1628.Google Scholar
Caillère, S., 1934 Analysis of palygorskite from Taodeni Comptes Rendus de l’Academie des Sciences, Paris 198 1795–1798.Google Scholar
Caillère, S., 1936 Thermal studies Bulletin de la Societé Française de Minéralogie 59 353–374 10.3406/bulmi.1936.4401.CrossRefGoogle Scholar
Caillère, S. and Brindley, G.W., 1951 Sepiolite X-ray Identification and Structures of Clay Minerals London Mineral-ogical Society 224–233.Google Scholar
Caillère, S. Henin, S. and Mackenzie, R.C., 1957 The sepiolite and palygorskite minerals The Differential Thermal Investigation of Clays London Mineralogical Society 231–247.Google Scholar
Caillère, S. Henin, S. and Brown, G., 1972 Sepiolite. Palygorskite The X-Ray Identification and Crystal Structures of Clay Minerals London Mineralogical Society 325–353.Google Scholar
Cetisli, H. and Gedikbey, T., 1990 Dissolution kinetics of sepiolite from Eskisehir (Turkey) in hydrochloric and nitric acids Clay Minerals 25 207–215 10.1180/claymin.1990.025.2.06.CrossRefGoogle Scholar
Chahi, A. Duplay, J. and Lucas, J., 1993 Analyses of palygorskites and associated clays from the Jbel Rhassoul (Morocco): Chemical characteristics and origin of formation Clays and Clay Minerals 41 401–411 10.1346/CCMN.1993.0410401.CrossRefGoogle Scholar
Dahab, A.S. and Jarjarah, M., 1989 Thermal stability of Saudi palygorskite for drilling muds Clay Minerals 24 695–700 10.1180/claymin.1989.024.4.10.CrossRefGoogle Scholar
Dias, I. González, I. Prates, S. and Galân, E., 1997 Palygorskite occurrences in the Portuguese sector of the Tagis basin. A preliminary report Clay Minerals 32 323–328 10.1180/claymin.1997.032.2.14.CrossRefGoogle Scholar
Drits, V.A. and Sokolova, G.V., 1971 Structure of palygorskite Soviet Physics Crystallography 16 183–185.Google Scholar
Fersmann, A., 1913 Research on magnesian silicates Mémoires de l’Academie des Sciences de St. Petersburg 32 321–430.Google Scholar
Foster, M.D., 1960 Interpretation of the composition of trioctahedral micas Professional Paper of United States Geological Survey 11–49.CrossRefGoogle Scholar
Fukushima, Y. Okamoto, T., Schultz, L.G. van Olphen, H. and Mumpton, F.A., 1987 Extended X-ray absorption fine structure study of cobalt-exchanged sepiolite Proceedings of the International Clay Conference, Denver, 1985 Bloomington, Indiana The Clay Minerals Society 9–16.Google Scholar
Galán, E., Schultz, L.G. van Olphen, H. and Mumpton, F.A., 1987 Industrial applications of sepiolite from Vallecas-Vicalvaro, Spain: A review Proceedings of the International Clay Conference, Denver, 1985 Bloomington, Indiana The Clay Minerals Society 400–404.Google Scholar
Galán, E. and Castillo, A., 1984 Sepiolite-palygorskite in Spanish Tertiary basins. Genetical patterns in continental environments Palygorskite-Sepiolite. Occurrences, Genesis and Uses 37 87–124.Google Scholar
Güven, N. and Carney, L.L., 1979 The hydrothermal transformation of sepiolite to stevensite and the effect of added chlorides and hydroxides Clays and Clay Minerals 27 253–260 10.1346/CCMN.1979.0270403.CrossRefGoogle Scholar
Hathaway, J.C. and Sachs, P.L., 1965 Sepiolite and clinoptilolite from the Mid-Atlantic Ridge American Mineralogist 50 852–867.Google Scholar
Hay, R.L. and Stoessell, R.K., 1984 Sepiolite in the Amboseli Basin of Kenya: A new interpretation Palygorskite-Sepiolite. Occurrences, Genesis and Uses 37 125–136.Google Scholar
He, C. Makovicky, E. and Osbaeck, B., 1996 Thermal treatment and pozzolanic activity of sepiolite Applied Clay Science 10 337–349 10.1016/0169-1317(95)00035-6.CrossRefGoogle Scholar
Heystek, H. and Schmidt, E., 1953 The mineralogy of the attapulgite-montmorillonite deposits in the Springbok Flats, Transvaal Transactions of the Geological Society of America 566 99–115.Google Scholar
Huggins, C.W., Denny, M.V. and Shell, H.R. (1962) Properties of palygorskite, an abestiform mineral. United States Bureau of Mines. Report of Investigation, 6071, 8 pp.Google Scholar
Imai, N. and Otsuka, R., 1984 Sepiolite and palygorskite in Japan Palygorskite-Sepiolite. Occurrences, Genesis and Uses 37 211–232.Google Scholar
Imai, N. Otsuka, R. Kashide, H. Hayashi, R. and Heller, L., 1969 Dehydration of palygorskite and sepiolite from Kuzuu district, Tochigi Pref., Central Japan Proceedings of International Clay Conference, Tokyo, Volume 1 99–108.Google Scholar
Inukai, K. Miyawaki, R. Tomura, S. Shimosaka, K. and Irkec, T., 1994 Purification of Turkish sepiolite through hydrochloric acid treatment Applied Clay Science 9 11–29 10.1016/0169-1317(94)90012-4.CrossRefGoogle Scholar
Isphording, W.C., 1984 The clays of Yucatan, Mexico: A contrast in genesis Palygorskite-Sepiolite. Occurrences, Genesis and Uses 37 59–73.Google Scholar
Jones, B.F. and Galân, E., 1988 Sepiolite and palygorskite Hydrous Phyllosilicates 19 631–674 10.1515/9781501508998-021.CrossRefGoogle Scholar
Kauffman, A.J. Jr., 1943 Fibrous sepiolite from Yavapai Country, Arizona American Mineralogist 28 512–520.Google Scholar
Komarneni, S. Fyfe, C.A. and Kennedy, G.J., 1986 Detection of nonequivalent Si sites in sepiolite and palygorskite by solid-state 29Si magic angle spinning-nuclear magnetic resonance Clays and Clay Minerals 34 99–102 10.1346/CCMN.1986.0340113.CrossRefGoogle Scholar
Lindqvist, K. and Laitakari, I., 1981 Palygorskite from Padasjoki, southern Finland Bulletin of the Geological Society of Finland 53 91–95 10.17741/bgsf/53.2.003.CrossRefGoogle Scholar
Lopez Aguayo, F. and Gonzalez Lopez, J.M., 1995 Fibrous clays in the Almazan Basin (Iberian Range, Spain): Genetic pattern in a calcareous lacustrine environment Clay Minerals 30 395–406 10.1180/claymin.1995.030.4.11.CrossRefGoogle Scholar
Lopez Gonzalez, J.D. Ramirez Saenz, A. Rodriguez Rei-noso, F. Valenzuela Calahorro, C. and Zurita Herrera, I.L., 1981 Activación de una sepiolita con disoluciones diluidas de NO3H y posteriores tratamientos térmicos: I. Estudio de la superficie específica Clay Minerals 16 103–113 10.1180/claymin.1981.016.1.08.CrossRefGoogle Scholar
Mackinnon, I.D.R., Mackinnon, I.D.R. and Mumpton, F.A., 1993 Introduction to electron-beam techniques Electron-optical Methods in Clay Science. CNMS Workshop Lectures, Volume 2 1–13.Google Scholar
Maksimovic, Z. and Radukic, G., 1961 Sepiolite from Goles near Lipljan (South Serbia) Annals of Geology of the Peninsula Balkanica 28 309–316.Google Scholar
Martín Vivaldi, J.L. and Cano Ruíz, J., 1953 Contribución al estudio de la sepiolita (I). Caracterización y propiedades de sepiolitas españolas Anales de Edafología y Fisiología Vegetal XII 827–855.Google Scholar
Martín Vivaldi, J.L. and Cano, J., 1956 Contribution to the study of sepiolite: II. Some considerations regarding the mineralogical formula Clays and Clay Minerals 4 173–176.CrossRefGoogle Scholar
Mayayo, M.J. Torres Ruíz, J. González López, JM L Galindo, A. Bauluz, B., Ortega, M. Galindo, A. L. and Palomo, I., 1996 The deposit of sepio-lite-smectite at Mara (Calatayud basin) Advances in Clay Minerals Granada Sociedad Espanola de Arcillas 143–145.Google Scholar
Midgley, H.G., 1964 Sepiolite from Mullion, Cornwall Clay Mineral Bulletin 4 88–92 10.1180/claymin.1959.004.22.04.CrossRefGoogle Scholar
Millot, G. Nahon, D. Paquet, H. Ruellan, A. and Tardy, Y., 1977 L’épigénie calcaire des roches silicatées dans les encroûtements carbonatés en pays subaride-Antialtas Morocco Sciences Geologiques Bulletin 30 129–152 10.3406/sgeol.1977.1512.CrossRefGoogle Scholar
Nagata, H. Sakae, T. and Henmi, K., 1975 New occurrence of sepiolites from the limestone caves at Gifu and Tokyo, Japan (in Japanese with English abstr.) Contributions to Clay Mineralogy 128–133.Google Scholar
Nagy, B. and Bradley, W.E., 1955 Structure of sepiolite American Mineralogist 40 885–892.Google Scholar
Newman, A.C.D. Brown, G. and Newman, A.C.D., 1987 The chemical constitution of clays Chemistry of Clays and Clay Minerals London Mineralogical Society 1–128.Google Scholar
Paquet, H., 1983 Stability, instability and significance of at-tapulgite in the calcretes of mediterranean and tropical areas with marked dry season Science Geologiques 72 131–140.Google Scholar
Paquet, H. Duplay, J. Valleron-Blanc, M.M. Millot, G., Schultz, L.G. van Olphen, H. and Mumpton, F.A., 1987 Octahedral composition of individual particles in smectite-palygorskite and smectite-sepiolite assemblages Proceedings of the International Clay Conference, Denver, 1985 Bloomington, Indiana The Clay Minerals Society 73–77.Google Scholar
Post, J.L., 1978 Sepiolite deposits of the Las Vegas, Nevada Area Clays and Clay Minerals 26 58–64 10.1346/CCMN.1978.0260107.CrossRefGoogle Scholar
Post, J.L. and Janke, N.C., 1984 Ballarat sepiolite, Inyo Country, California Palygorskite-Sepiolite. Occurrences, Genesis and Uses 37 159–167.Google Scholar
Robertson, R., 1961 The origin of English Fullers Earths Mineralogical Magazine 4 282–287.Google Scholar
Robertson, R.H.S. and Stot, A., 1974 Minneralogical analysis of some sepiolitic clays Estudios Geológicos XXX 347–357.Google Scholar
Rogers, L.E. Martin, A.E. and Norrish, K., 1954 The occurrence of palygorskite near Ipswich, Queensland Mineralogical Magazine 30 534–540 10.1180/minmag.1954.030.227.07.CrossRefGoogle Scholar
Rogers, L.E. Quirk, J. and Norrish, K., 1956 Occurrence of an aluminum-sepiolite in a soil having unusual water relationships Journal of Soil Science 7 177–184 10.1111/j.1365-2389.1956.tb00873.x.CrossRefGoogle Scholar
Sánchez, C. and Galán, E., 1995 An approach to the genesis of palygorskite in a Neogene-Quaternary continental basin using principal factor analysis Clay Minerals 30 225–238 10.1180/claymin.1995.030.3.06.CrossRefGoogle Scholar
Shadfan, H. Mashhady, A.S. Dixon, J.B. and Hussen, A.A., 1985 Palygorskite from Tertiary formations of Eastern Saudi Arabia Clays and Clay Minerals 33 451–457 10.1346/CCMN.1985.0330512.CrossRefGoogle Scholar
Siddiqui, M.K.H., 1984 Occurrence of palygorskite in the Deccan Trap formation in India Palygorskite-Sepiolite. Occurrences, Genesis and Uses 37 243–250.Google Scholar
Stephen, I., 1954 An occurrence of palygorskite in the Shetland Islands Mineralogical Magazine 30 471–480 10.1180/minmag.1954.030.226.07.CrossRefGoogle Scholar
Stoessell, R.K. and Hay, R.L., 1978 The geochemical origin of sepiolite and kerolite at Amboseli, Kenya Contribution to Mineralogy and Petrology 65 255–267 10.1007/BF00375511.CrossRefGoogle Scholar
Suarez, M. Flores, L. Añorbe, M. Díez Torres, J.A. Navar-rete López, J. Martín Pozas, J.M., Störr, M. Henning, K.H. and Adolfi, P., 1991 Mineralogical and textural characterization of the Bercimuel palygorskite (Segovia, Spain) Proceedings of the 7th EUROCLAY Conference Dresden ’91 1019–1023.Google Scholar
Suarez, M. Robert, M. Elsass, E. and Martin Pozas, J.M., 1994 Evidence of a precursor in the neoformation of palygorskite. New data by analytical electron microscopy Clay Minerals 29 255–264 10.1180/claymin.1994.029.2.11.CrossRefGoogle Scholar
Suarez, M. Flores, L.V. and Martin Pozas, J.M., 1995 Mineralogical data for palygorskite from Bercimuel (Segovia, Spain) Clay Minerals 30 261–266 10.1180/claymin.1995.030.3.10.CrossRefGoogle Scholar
Takahashi, H., 1966 Occurrence of sepiolite from the Karasawa Mine, Tochigi Prefecture Journal of the Japan Association of Mineralogy, Petrology and Economic Geology 56 187–190.Google Scholar
Teodorovitch, , 1961 Authigenic Minerals in Sedimentary Rocks (Translation) New York Consultants Bureau 10.1007/978-1-4684-0652-8.CrossRefGoogle Scholar
Vicente Rodríguez, M.A. López González, J.D. and Bañares Muñoz, M.A., 1994 Acid activation of a Spanish sepiolite: Physicochemical characterization, free silica content and surface area of products obtained Clay Minerals 29 361–367 10.1180/claymin.1994.029.3.07.CrossRefGoogle Scholar
Weaver, C.E. and Pollard, L., 1973 The Chemistry of Clay Minerals Amsterdam Elsevier.Google Scholar
Wiersma, J., 1970 Provenance, genesis and paleo-geographical implications of microminerals occurring in sedimentary rocks of the Jordan Valley area Publication of Fysical Geography University of Amsterdam Bodemkunde Laboratory.Google Scholar
Yalçin, H. and Bozkaya, O., 1995 Sepiolitite-palygorskite from the Hekimhan region (Turkey) Clays and Clay Minerals 43 705–717 10.1346/CCMN.1995.0430607.CrossRefGoogle Scholar
Yeniyol, M., 1986 Vein-like sepiolite occurrence as a replacement of magnesite in Konya, Turkey Clays and Clay Minerals 34 353–356 10.1346/CCMN.1986.0340317.CrossRefGoogle Scholar
Zheng, Z., Störr, M. Henning, K.H. and Adolfi, P., 1991 Palygorskite in China Proceedings of the 7th EUROCLAY Conference Dresden ’91 1209–1210.Google Scholar