Rietveld refinement of Ca2TiSiO6 perovskite

Kurt Leinenweber, John Parise

Research output: Contribution to journalArticle

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Abstract

The structure of the high-pressure cubic double perovskite Ca2TiSiO6 was refined using synchrotron X-ray powder data [S.G. Fm3m, a = 7.4105(1) Å, Z = 4]. Ti and Si are fully ordered into alternating octahedra in the perovskite framework, with Ca occupying a tetrahedrally distorted cuboctahedron. The cation-anion bond lengths are Ti-O = 1.947(3) Å, Si-O = 1.758(3) Å, and Ca-O = 2.622(1) Å.

Original languageEnglish (US)
Pages (from-to)475-478
Number of pages4
JournalAmerican Mineralogist
Volume82
Issue number5-6
DOIs
StatePublished - Jan 1 1997

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ASJC Scopus subject areas

  • Geophysics
  • Geochemistry and Petrology

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