The structure of antimonian dussertite and the role of antimony in oxysalt minerals

U. Kolitsch; P. G. Slade; E. R.T. Tiekink; A. Pring

doi:10.1180/002646199548277

The structure of antimonian dussertite and the role of antimony in oxysalt minerals

U. Kolitsch, P. G. Slade, E. R.T. Tiekink, A. Pring

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

33 Citations (Scopus)

Abstract

The structure of antimonian dussertite, Ba(Fe_0.84³⁺,Sb_0.16⁵⁺)₃(AsO₄)₂(OH,H₂O)₆, has been refined in space group R3m with a 7.410(3), c 17.484(4) Å, Z = 3, to R = 3.2 % and R_W = 3.7 % using 377 observed reflections with I ≥ 3 σ(I). The structure is of the alunite-type and consists of sheets of corner-sharing (Fe³⁺,Sb⁵⁺)O₆ octahedra parallel to (0001). The substitution of Sb⁵⁺ for Fe³⁺, and not for As⁵⁺, is unambiguously demonstrated not only by the structure refinement but also by electron microprobe analyses and crystal-chemical considerations. The icosahedrally coordinated Ba cations occupy cavities between pairs of octahedral sheets and are surrounded by six O atoms from the AsO₄ tetrahedra and six O atoms from the (Fe³⁺, Sb⁵⁺)O₆ octahedra. The mean bond lengths for the various coordination polyhedra are As-O 1.684(3) Å, (Fe,Sb)-O 2.004(1) Å, and Ba-O 2.872(2) Å. A hydrogen-bonding network is modelled using bond-valence calculations. The dussertite sample investigated is the first member of the crandallite group found to contain substantial Sb.

Original language	English
Pages (from-to)	17-26
Number of pages	10
Journal	Mineralogical Magazine
Volume	63
Issue number	1
DOIs	https://doi.org/10.1180/002646199548277
Publication status	Published - 1 Feb 1999
Externally published	Yes

Keywords

Antimony
Crandallite group
Crystal chemistry
Crystal structure
Dussertite

Access to Document

10.1180/002646199548277Licence: In Copyright

Cite this

@article{529f8db64ea644499f5ea3710d5fd5c9,

title = "The structure of antimonian dussertite and the role of antimony in oxysalt minerals",

abstract = "The structure of antimonian dussertite, Ba(Fe0.843+,Sb0.165+)3(AsO4)2(OH,H2O)6, has been refined in space group R3m with a 7.410(3), c 17.484(4) {\AA}, Z = 3, to R = 3.2 % and RW = 3.7 % using 377 observed reflections with I ≥ 3 σ(I). The structure is of the alunite-type and consists of sheets of corner-sharing (Fe3+,Sb5+)O6 octahedra parallel to (0001). The substitution of Sb5+ for Fe3+, and not for As5+, is unambiguously demonstrated not only by the structure refinement but also by electron microprobe analyses and crystal-chemical considerations. The icosahedrally coordinated Ba cations occupy cavities between pairs of octahedral sheets and are surrounded by six O atoms from the AsO4 tetrahedra and six O atoms from the (Fe3+, Sb5+)O6 octahedra. The mean bond lengths for the various coordination polyhedra are As-O 1.684(3) {\AA}, (Fe,Sb)-O 2.004(1) {\AA}, and Ba-O 2.872(2) {\AA}. A hydrogen-bonding network is modelled using bond-valence calculations. The dussertite sample investigated is the first member of the crandallite group found to contain substantial Sb.",

keywords = "Antimony, Crandallite group, Crystal chemistry, Crystal structure, Dussertite",

author = "U. Kolitsch and Slade, {P. G.} and Tiekink, {E. R.T.} and A. Pring",

year = "1999",

month = feb,

day = "1",

doi = "10.1180/002646199548277",

language = "English",

volume = "63",

pages = "17--26",

journal = "Mineralogical Magazine",

issn = "0026-461X",

publisher = "Mineralogical Society",

number = "1",

}

TY - JOUR

T1 - The structure of antimonian dussertite and the role of antimony in oxysalt minerals

AU - Kolitsch, U.

AU - Slade, P. G.

AU - Tiekink, E. R.T.

AU - Pring, A.

PY - 1999/2/1

Y1 - 1999/2/1

N2 - The structure of antimonian dussertite, Ba(Fe0.843+,Sb0.165+)3(AsO4)2(OH,H2O)6, has been refined in space group R3m with a 7.410(3), c 17.484(4) Å, Z = 3, to R = 3.2 % and RW = 3.7 % using 377 observed reflections with I ≥ 3 σ(I). The structure is of the alunite-type and consists of sheets of corner-sharing (Fe3+,Sb5+)O6 octahedra parallel to (0001). The substitution of Sb5+ for Fe3+, and not for As5+, is unambiguously demonstrated not only by the structure refinement but also by electron microprobe analyses and crystal-chemical considerations. The icosahedrally coordinated Ba cations occupy cavities between pairs of octahedral sheets and are surrounded by six O atoms from the AsO4 tetrahedra and six O atoms from the (Fe3+, Sb5+)O6 octahedra. The mean bond lengths for the various coordination polyhedra are As-O 1.684(3) Å, (Fe,Sb)-O 2.004(1) Å, and Ba-O 2.872(2) Å. A hydrogen-bonding network is modelled using bond-valence calculations. The dussertite sample investigated is the first member of the crandallite group found to contain substantial Sb.

AB - The structure of antimonian dussertite, Ba(Fe0.843+,Sb0.165+)3(AsO4)2(OH,H2O)6, has been refined in space group R3m with a 7.410(3), c 17.484(4) Å, Z = 3, to R = 3.2 % and RW = 3.7 % using 377 observed reflections with I ≥ 3 σ(I). The structure is of the alunite-type and consists of sheets of corner-sharing (Fe3+,Sb5+)O6 octahedra parallel to (0001). The substitution of Sb5+ for Fe3+, and not for As5+, is unambiguously demonstrated not only by the structure refinement but also by electron microprobe analyses and crystal-chemical considerations. The icosahedrally coordinated Ba cations occupy cavities between pairs of octahedral sheets and are surrounded by six O atoms from the AsO4 tetrahedra and six O atoms from the (Fe3+, Sb5+)O6 octahedra. The mean bond lengths for the various coordination polyhedra are As-O 1.684(3) Å, (Fe,Sb)-O 2.004(1) Å, and Ba-O 2.872(2) Å. A hydrogen-bonding network is modelled using bond-valence calculations. The dussertite sample investigated is the first member of the crandallite group found to contain substantial Sb.

KW - Antimony

KW - Crandallite group

KW - Crystal chemistry

KW - Crystal structure

KW - Dussertite

UR - http://www.scopus.com/inward/record.url?scp=0032939564&partnerID=8YFLogxK

U2 - 10.1180/002646199548277

DO - 10.1180/002646199548277

M3 - Article

AN - SCOPUS:0032939564

SN - 0026-461X

VL - 63

SP - 17

EP - 26

JO - Mineralogical Magazine

JF - Mineralogical Magazine

IS - 1

ER -

The structure of antimonian dussertite and the role of antimony in oxysalt minerals

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this