Crystallography Reports

, Volume 60, Issue 1, pp 34–36

Study of the structure of synthetic opals affected by temperature and pressure

  • V. A. Somenkov
  • S. S. Agafonov
  • V. P. Glazkov
  • E. S. Kovalenko
  • M. N. Shushunov
Structure of Inorganic Compounds

DOI: 10.1134/S1063774515010216

Cite this article as:
Somenkov, V.A., Agafonov, S.S., Glazkov, V.P. et al. Crystallogr. Rep. (2015) 60: 34. doi:10.1134/S1063774515010216
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Abstract

It is demonstrated that synthetic opals, like most natural ones, have a cristobalite rather than quartz basis, change their color from white to blue after losing their water-containing component, and form superlattices. Being affected by temperature and pressure, they undergo partial or complete crystallization to the corresponding polymorphic modifications.

Copyright information

© Pleiades Publishing, Inc. 2015

Authors and Affiliations

  • V. A. Somenkov
    • 1
  • S. S. Agafonov
    • 1
  • V. P. Glazkov
    • 1
  • E. S. Kovalenko
    • 1
  • M. N. Shushunov
    • 1
  1. 1.National Research Centre “Kurchatov Institute”MoscowRussia

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