Abstract
This paper presents a comparative analysis of existing structural models for AAl2Si2O8 · xH2O (A = alkaline-earth element, 0 ≤ x ≤ 5) solid solutions and highlights their advantages and drawbacks. Water molecules are shown to play an important role in the formation of a zeolite structure, as exemplified by changes in the structural framework of gismondine during its dehydration.
Similar content being viewed by others
References
Kraus, O., Röntgenographishen Untersuchungen an Gismondin, Zentralbl. Mineral., Geol. Palaontol. Abt. A, 1939, pp. 105–109.
Fischer, K. and Kuzel, H., Elementarzelle und Raumgruppe von Gismondin, Naturwissenschaften, 1958, vol. 45, p. 488.
Fischer, K., The crystal structure determination of the zeolite gismondite. CaAl2Si2O8 · 4H2O, Am. Mineral., 1963, vol. 48, pp. 664–672.
Nawaz, R., Morphology, twinning, and optical orientation of gismondine, Mineral. Mag., 1980, vol. 43, pp. 841–844.
Van Reeuwijk, L.P., The dehydration of gismondite, Am. Mineral., 1971, vol. 56, pp. 1655–1659.
Deer, W.A., Howie, R.A., and Zussman, J., Rock-Forming Minerals, vol. 4: Framework Silicates, New York: Wiley, 1962–1963.
Kempster, C.J.E., Megaw, H.D., and Radoslovich, E.W., The structure of anorthite, CaAl2Si2O8. I. Structure analysis, Acta Crystallogr., 1962, vol. 15, pp. 1005–1016.
Megaw, H.D., Kempster, C.J.E., and Radoslovich, E.W., The structure of anorthite, CaAl2Si2O8. II. Description and discussion, Acta Crystallogr., 1962, vol. 15, pp. 1017–1035.
Wainwright, J.E. and Starkey, J., A refinement of the structure of anorthite, Z. Kristallogr., 1971, vol. 133, pp. 75–84.
Angel, R.J., Carpenter, M.A., and Finger, L.W., Structural variation associated with compositional variation and order–disorder behavior in anorthite-rich feldspars, Am. Mineral., 1990, vol. 75, pp. 150–162.
Gay, P., A note on celsian, Acta Crystallogr., 1956, vol. 9, p. 474.
Newnham, R.E. and Megaw, H.D., The crystal structure of celsian (barium feldspar), Acta Crystallogr., 1960, vol. 13, pp. 303–312.
Griffen, D.T. and Ribbe, P.H., Refinement of the crystal structure of celsian, Am. Mineral., 1976, vol. 61, pp. 414–418.
Essene, E.J., An occurrence of cymrite in the Franciscan formation, California, Am. Mineral., 1967, vol. 52, pp. 1885–1890.
Drits, V.A., Kashaev, A.A., and Sokolova, G.V., Crystal structure of cymrite, Kristallografiya, 1975, vol. 20, pp. 280–286.
Bolotina, N.B., Rastsvetaeva, R.K., Andrianov, V.I., and Kashaev, A.A., Refinement of modulated crystals: cymrite structure, Kristallografiya, 1991, vol. 36, pp. 361–368.
Bolotina, N.B., Rastsvetaeva, R.K., and Kashaev, A.A., Refinement of the twinned structure of cymrite from the Ruby Creek deposit (Alaska), Crystallogr. Rep., 2010, vol. 55, no. 4, pp. 612–617.
Moro, M.C., Cembranos, M.L., and Fernendez, A., Celsian, (Ba,K)-feldspar and cymrite from Sedex barite deposits of Zamora, Spain, Can. Mineral., 2001, vol. 39, pp. 1039–1051.
Kol’tsova, T.N., Compositions of gismondine, cymrite, anorthite, and celsian solid solutions, Inorg. Mater., 2017, vol. 53, no. 7, pp. 741–751.
Vezzalini, G., Quartieri, S., and Alberti, A., Structural modifications induced by dehydration in the zeolite gismondine, Zeolites, 1993, vol. 13, pp. 34–42.
Vezzalini, G. and Oberti, R., The crystal chemistry of gismondines: the non-existence of K-rich gismondines, Bull. Mineral., 1984, vol. 107, pp. 805–812.
Cortesogno, L., Lucchetti, G., and Penco, A.M., Associazioni a zeolite nel “Gruppo di Voltri”: caratteristiche mineralogiche e significato genetico, Rendiconti Soc. Ital. Mineral. Petrol., 1975, vol. 31, pp. 673–710.
Wadoski-Romeijn, E. and Armbruster, T., Topotactic transformation and dehydration of the zeolite gismondine to a novel Ca feldspar structure, Am. Mineral., 2013, vol. 98, pp. 1988–1997.
Kol’tsova, T.N., Phase transformations of AAl2Si3O10 · nH2O (A = Ba, Ca; n = 2–4), Inorg. Mater., 2009, vol. 45, no. 9, pp. 1036–1047.
Kol’tsova, T.N., Crystal structures of zeolites with the general formula CaAl2Si4O12 · nH2O, Inorg. Mater., 2007, vol. 43, no. 2, pp. 176–184.
Kol’tsova, T.N., Crystal structures of CaO–Al2O3–SiO2–H2O zeolites, Inorg. Mater., 2009, vol. 45, no. 2, pp. 99–115.
Kol’tsova, T.N., Analysis of the homogeneity ranges of faujasite-based solid solutions, Inorg. Mater., 2013, vol. 49, no. 11, pp. 1138–1147.
Kol’tsova, T.N., Solid solutions of offretite, direnzoite, and ferrierite, Inorg. Mater., 2016, vol. 52, no. 8, pp. 743–754.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © T.N. Kol’tsova, 2017, published in Neorganicheskie Materialy, 2017, Vol. 53, No. 8, pp. 834–844.