Hyperfine Interactions

, Volume 46, Issue 1–4, pp 651–658 | Cite as

Mössbauer study of mineral glasses: East rhodope perlites

  • J. L. Dormann
  • C. Djega-Mariadassou
  • Y. Yanev
  • P. Renaudin
Mineralogy

Abstract

Several perlites of different colours originating from east Rhodope (Bulgaria) have been studied by Mössbauer spectroscopy. Several types of iron are revealed (i) paramagnetic Fe2+ and Fe3+ down 4.2K which correspond to iron dispersed into the glass matrix (ii) small aggregates of Fe2+ and hematite in colloidal type phase with superparamagnetic properties (iii) large aggregates and microlites of hematite and magnetite. Alteration effects and colour problem are discussed.

Keywords

Colour Iron Spectroscopy Thin Film Magnetite 

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Copyright information

© J.C. Baltzer A.G., Scientific Publishing Company 1989

Authors and Affiliations

  • J. L. Dormann
    • 1
  • C. Djega-Mariadassou
    • 1
  • Y. Yanev
    • 2
  • P. Renaudin
    • 1
  1. 1.Laboratoire de MagnétismeCNRSMeudon-CédexFrance
  2. 2.Geological InstituteBulgarian Academy of SciencesSofiaBulgaria

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