Email this article Crystal structure and refined formula of garyansellite Mg2Fe3+(PO4)2(OH) · 2H2O
- Authors: Zubkova N.V.1, Pekov I.V.1, Kasatkin A.V.2, Chukanov N.V.3, Ksenofontov D.A.1, Pushcharovsky D.Y.1
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Affiliations:
- Moscow State University
- Fersman Mineralogical Museum
- Institute of Problems of Chemical Physics
- Issue: Vol 467, No 1 (2016)
- Pages: 299-302
- Section: Geochemistry
- URL: https://journals.rcsi.science/1028-334X/article/view/188193
- DOI: https://doi.org/10.1134/S1028334X16030235
- ID: 188193
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Abstract
Single-crystal study of the structure (R = 0.0268) was performed for garyansellite from Rapid Creek, Yukon, Canada. The mineral is orthorhombic, Pbna, a = 9.44738(18), b = 9.85976(19), c = 8.14154(18) Å, V = 758.38(3) Å3, Z = 4. An idealized formula of garyansellite is Mg2Fe3+(PO4)2(OH) · 2H2O. Structurally the mineral is close to other members of the phosphoferrite–reddingite group. The structure contains layers of chains of M(2)O4(OH)(H2O) octahedra which share edges to form dimers and connected by common edges with isolated from each other M(1)O4(H2O)2 octahedra. The neighboring chains are connected to the layer through the common vertices of M(2) octahedra and octaahedral layers are linked through PO4 tetrahedra.
About the authors
N. V. Zubkova
Moscow State University
Author for correspondence.
Email: n.v.zubkova@gmail.com
Russian Federation, Moscow
I. V. Pekov
Moscow State University
Email: n.v.zubkova@gmail.com
Russian Federation, Moscow
A. V. Kasatkin
Fersman Mineralogical Museum
Email: n.v.zubkova@gmail.com
Russian Federation, Moscow
N. V. Chukanov
Institute of Problems of Chemical Physics
Email: n.v.zubkova@gmail.com
Russian Federation, Chernogolovka, Moscow oblast
D. A. Ksenofontov
Moscow State University
Email: n.v.zubkova@gmail.com
Russian Federation, Moscow
D. Yu. Pushcharovsky
Moscow State University
Email: n.v.zubkova@gmail.com
Russian Federation, Moscow
