Single-crystal X-ray refinement of wilkinsonite, Na2Fe 4 2+Fe2 3+Si6O 20

Jason B. Burt, Robert T Downs, Gelu Costin

Research output: Contribution to journalArticle

Abstract

This is the first structural refinement of the mineral wilkinsonite, Na2Fe4 2+Fe2 3+Si6O20. Wilkinsonite is a member of the aenigmatite group and consists of bands of Fe octa-hedra connected to eight-coordinated Na polyhedra forming sheets parallel to (011), which are inter-connected by chains of [Si6O18] and Fe octa-hedra. The site occupancies of the different valence states of Fe have been determined from bond distances and bond valence.

Original languageEnglish (US)
JournalActa Crystallographica Section E: Structure Reports Online
Volume63
Issue number5
DOIs
StatePublished - 2007

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Minerals
Single crystals
valence
X rays
single crystals
polyhedrons
x rays
minerals

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Materials Science(all)
  • Chemistry(all)

Cite this

Single-crystal X-ray refinement of wilkinsonite, Na2Fe 4 2+Fe2 3+Si6O 20. / Burt, Jason B.; Downs, Robert T; Costin, Gelu.

In: Acta Crystallographica Section E: Structure Reports Online, Vol. 63, No. 5, 2007.

Research output: Contribution to journalArticle

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