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

Jason B. Burt; Robert T. Downs; Gelu Costin

doi:10.1107/S1600536807015048

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

Jason B. Burt, Robert T. Downs, Gelu Costin

Geosciences

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

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 language	English (US)
Pages (from-to)	i122-i124
Journal	Acta Crystallographica Section E: Structure Reports Online
Volume	63
Issue number	5
DOIs	https://doi.org/10.1107/S1600536807015048
State	Published - 2007

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

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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.",

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T1 - Single-crystal X-ray refinement of wilkinsonite, Na2Fe 4 2+Fe2 3+Si6O 20

AU - Burt, Jason B.

AU - Downs, Robert T.

AU - Costin, Gelu

PY - 2007

Y1 - 2007

N2 - 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.

AB - 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.

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

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