ELNES spectroscopy of mixed Si coordination minerals

B. Poe, F. Seifert, Thomas Sharp, Z. Wu

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


Si K- and L-edge ELNES spectroscopy and multiple-scattering (MS) calculations are used to examine mixed Si coordination compounds varying in SiVI:SiIV ratio. As in previous studies, the edges are influenced mainly by silicon coordination (tetrahedral vs. octahedral), as supported by the MS calculations. We demonstrate two methods semi-quantitatively to extract the value of SiVI/(SiVI+SiIV): (1) A linear relationship between the L2,3-L1 splitting and SiVI/(SiVI+SiIV) is observed, (2) a fitting method based on the coaddition of reference tetrahedral and octahedral Si spectra is applied to both Si K- and L-edge ELNES spectra.

Original languageEnglish (US)
Pages (from-to)477-487
Number of pages11
JournalPhysics and Chemistry of Minerals
Issue number7
StatePublished - Sep 1997

ASJC Scopus subject areas

  • Materials Science(all)
  • Geochemistry and Petrology


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