A study of synthetic and natural eucryptite

  • V. A. Kolesova
Brief Communications


  1. 1.

    In hydrothermal conditions at a temperature of 350°C and a pressure of 130 kg/cm2 the low temperature form of eucryptite, α-Li2O · Al2O3 · 2SiO2, has been synthesized. The material was identical in structure and properties with the natural minerala - eucryptite.

  2. 2.

    The high temperature modification of eucryptite,β-Li2O · Al2O3 · 2SiO2, was obtained by thermal transformation of α-eucryptite, and also by crystallization of glass of the stoichiometnc composition.

  3. 3.

    The infrared absorption spectra of natural and synthetic α-eucryptite and syntheticβ-eucryptite were studied. The band in the 900–1000 cm−1 region is shifted to higher frequencies as the degree of polymerization of the anionic skeleton increases in the transition from α- toβ-eucryptite.



Polymerization Crystallization Al2O3 Absorption Spectrum Temperature Modification 
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Literature cited

  1. 1.
    P. Launer, Amer. Mineralogist37, 764 (1952).Google Scholar
  2. 2.
    W. Keller, J. Spotts, and D. Biggs. Amer. J. Sci.250, 453 (1952).Google Scholar
  3. 3.
    F. Matossi and P. Krüger, Z. Phys.99, I (1936).Google Scholar
  4. 4.
    C. S. Hurlbut, Amer. Mineralogist47, 557 (1962).Google Scholar
  5. 5.
    H. G. F. Winkler, Acta crystallogr.6, 99 (1953).Google Scholar
  6. 6.
    H. G. F. Winkler, Acta crystallogr.1, 27 (1948).Google Scholar
  7. 7.
    R. Roy, D. Roy, and E. Osborn, J. Am. Ceram. Soc.33, 152 (1950).Google Scholar
  8. 8.
    E. A. Porai-Koshits, V. I. Aver'yanov, and Yu. G. Sokolov, an article in Development of an Ionization Method for Registering X-rays in X-ray Structural Analysis [in Russian], Institute of Silicate Chemistry, USSR Academy of Sciences, 1954–1955.Google Scholar
  9. 9.
    A. N. Winchell, Optical Mineralogy [Russian translation], IL, Moscow (1949).Google Scholar
  10. 10.
    V. A. Kolesova, Optika i spektroskopiya,6, 38 (1959).Google Scholar
  11. 11.
    R. G. Milkey, Amer. Mineralogist45, 990 (1960).Google Scholar
  12. 12.
    V. A. Kolesova, Collection: The Structure of Substances and Spectroscopy, Moscow, Izd. AN SSSR (1960), p. 93.Google Scholar

Copyright information

© Consultants Bureau 1963

Authors and Affiliations

  • V. A. Kolesova
    • 1
  1. 1.I. V. Grebenshikov Institute of Silicate ChemistryUSSR Academy of SciencesUSSR

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