Hostname: page-component-78c5997874-m6dg7 Total loading time: 0 Render date: 2024-11-14T08:21:34.520Z Has data issue: false hasContentIssue false
  • English
  • Français

Origin of low-symmetry growth sectors in edingtonite and yugawaralite, and crystal structure of the k{011} and v{120} sectors of yugawaralite

Published online by Cambridge University Press:  05 July 2018

T. Tanaka ,
R. Kimura ,
M. Akizuki  and
Y. Kudoh
T. Tanaka
Affiliation:
Institute of Mineralogy, Petrology, and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
R. Kimura
Affiliation:
Institute of Mineralogy, Petrology, and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
M. Akizuki
Affiliation:
Institute of Mineralogy, Petrology, and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
Y. Kudoh
Affiliation:
Institute of Mineralogy, Petrology, and Economic Geology, Faculty of Science, Tohoku University, Aoba-ku, Sendai 980-8578, Japan
Get access Rights & Permissions [Opens in a new window]

Abstract

Edingtonite and yugawaralite showing sectoral textures were studied by polarized optical microscopy and X-ray analysis. In edingtonite, the m{110} sector (2Vα = 22°) is optically triclinic and the c{001} sector (2Vα = 52°) is orthorhombic. In yugawaralite, the k{011} sector is optically monoclinic, whereas the v{120} sector is triclinic. Their crystal structures were determined. The results of refinement showed that the space groups of the k{011} (Rw = 4.5%) and v{120} (Rw = 5.1%) growth sectors are monoclinic Pc and triclinic P1, respectively. In the v{120} sector, several interatomic distances, bond angles and site occupancies are different with respect to a symmetrical plane of the structure, and therefore the monoclinic c glide is extinct. Thus, the X-ray symmetry correlates with the optical one. From the relationship between the surface and internal texture, the symmetry and sector can be explained by cation (Al/Si) ordering during non-equilibrium crystal growth.

Keywords

growth sectorscrystal structureyugawaralitezeolite
Type
Research Article
Information
Mineralogical Magazine , Volume 66 , Issue 3 , June 2002 , pp. 409 - 420
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2002

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Akizuki, M. (1981) Origin of optical variation in analcime. American Mineralogist, 66, 403–409.Google Scholar
Akizuki, M. (1986) Al-Si ordering and twinning in edingtonite. American Mineralogist, 71, 1510–1514.Google Scholar
Akizuki, M. (1987 a) An explanation of optical variation in yugawaralite. Mineralogical Magazine, 51, 615–620.CrossRefGoogle Scholar
Akizuki, M. (1987 b) Crystal symmetry and order-disorder structure of brewsterite. American Mineralogist, 72, 645–648.Google Scholar
Akizuki, M. and Konno, H. (1985) Order-disorder structure and the internal texture of stilbite. American Mineralogist, 70, 814–821.Google Scholar
Akizuki, M and Sunagawa, I. (1978) Study of the sector structure in adularia by means of optical microscopy, infra-red absorption, and electron microscopy. Mineralogical Magazine, 42, 453–462.CrossRefGoogle Scholar
Akizuki, M., Kudoh, Y. and Satoh, Y. (1993) Crystal structure of the orthorhombic ﹛001﹜ growth sector of stilbite. European Journal of Mineralogy, 5, 839–843.CrossRefGoogle Scholar
Akizuki, M., Kudoh, Y. and Kuribayashi, T. (1996) Crystal structure of the ﹛011﹜, ﹛610﹜, and ﹛010﹜ growth sectors in brewsterite. American Mineralogist, 81, 1501–1506.CrossRefGoogle Scholar
Akizuki, M., Kuribayashi, T., Nagase, T. and Kitakaze, A. (2001) Triclinic liddicotite and elbaite in growth sectors of tourmaline from Madagascar. American Mineralogist, 86, 364–369.CrossRefGoogle Scholar
Alberti, A., Quartieri, S. and Vezzalini, G. (1996) Thermal behavior of zeolites: single crystal X-ray study of dehydration and rehydration mechanism in yugawaralite. European Journal of Mineralogy, 8, 1273–1282.CrossRefGoogle Scholar
Brauns, R. (1891) Die Optischen Anomalien der Krystalle. S. Hirzel, Leipzig, Germany.Google Scholar
Eberlein, C.D., Erd, R.C., Weber, F. and Beatty, L.B. (1971) New occurrence of yugawaralite from the Chena hot springs area, Alaska. American Mineralogist, 56, 1699–1717.Google Scholar
Galli, E. (1976) Crystal structure refinement of edingtonite. Acta Crystallographica, B32, 1623–1627.CrossRefGoogle Scholar
Grice, J.D., Gault, R.A. and Ansell, H.G. (1984) Edingtonite: The first two Canadian occurrences. The Canadian Mineralogist, 22, 253–258.Google Scholar
Hey, M.H. (1934) Studies on the zeolites. Part VI. Edingtonite. Mineralogical Magazine, 23, 483–494.CrossRefGoogle Scholar
Ibers, J.A. and Hamilton, W.C. (1974) International Tables for X-ray Crystallography. Vol. 4. Revised and supplementary tables. Kynoch Press, Birmingham, England, 854 pp.Google Scholar
Kerr, I.S. and Williams, D.J. (1969) The crystal structure of yugawaralite. Acta Crystallographica, B25, 1183–1190.CrossRefGoogle Scholar
Leimer, H.W. and Slaughter, M. (1969) The determination and refinement of the crystal structure of yugawaralite. Zeitschrift für Kristallographie, 130, 88–111.CrossRefGoogle Scholar
Mazzi, F. and Galli, E. (1978) Is each analcime different? American Mineralogist. 63, 448–460.Google Scholar
Mazzi, F., Galli, E. and Gottardi, G. (1984) Crystal structure refinement of two tetragonal edingtonites. Neues Jahrbuch für Mineralogie, Monatshefte, 373–382.Google Scholar
Pongiluppi, D. (1977) A new occurrence of yugawaralite at Osilo, Sardinia. The Canadian Mineralogist, 15, 113–114.Google Scholar
Sakurai, K. and Hayashi, A. (1952) ‘Yugawaralite’, a new zeolite. Science Reports of the Yokohama National University, Section II, 1, 69–77.Google Scholar
Shtukenberg, A.G., Punin, Yu.O. and Soloviev, V.N. (2000) Effect of growth conditions on the birefringence of mixed crystals revealed in alum solid solutions. Mineralogical Magazine, 64, 837–845.CrossRefGoogle Scholar
Shtukenberg, A.G., Punin, Yu.O., Frank-Kamenetskaya, O.V., Kovalev, O.G. and Sokolov, P.B. (2001) On the origin of anomalous birefringence in grandite garnets. Mineralogical Magazine, 65, 445–459.CrossRefGoogle Scholar
Smith, J.V. and Brown, W.L. (1974, 1988) Feldspar Minerals, 1. Springer-Verlag, Berlin, Heidelberg.Google Scholar
Smith, J.V., Knowles, C.R. and Rinaldi, F. (1964) Crystal structure with a chabazite framework. III. Hydrated Ca-chabazite at +20 and –150°C. Acta Crystallographica, 17, 374–384.CrossRefGoogle Scholar
Tanaka, T., Akizuke, M. and Kudoh, Y. (2002) Optical properties and crystal structure of triclinic growth sectors in vesuvianite. Mineralogical Magazine, 66, 261–274.CrossRefGoogle Scholar
Taylor, W.H. and Jackson, R. (1933) The crystal structure of edingtonite. Zeitschrift für Kristallographie, 86, 53–64.Google Scholar
teXsan (1985, 1992) Crystal structure analysis package. Molecular Structure Corporation, Texas.Google Scholar