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Further detail on the crystal structure of zussmanite

Published online by Cambridge University Press:  05 July 2018

A. Lopes-Vieira
Affiliation:
Department of Geology and Mineralogy, Parks Road, Oxford
J. Zussman
Affiliation:
Department of Geology and Mineralogy, Parks Road, Oxford

Summary

Mineral data and a brief outline of the structure for zussmanite (ideal formula

KFe13Si17AlO42(OH)14)

have been published previously. This paper describes the determination of the crystal structure and presents and discusses the results. The structure consists of rhombohedrally stacked layers of Fe-(O,OH) octahedra to each side of which are attached rings of six (Si,Al)-O tetrahedra. These composite layers are linked to one another by rings of three (Si,Al)-O tetrahedra, and by potassium atoms, the latter in positions analogous to those in a mica. There is some evidence of disorder of the layer stacking. Interatomic distances and angles, and valency balance, are discussed.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1969

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Footnotes

1

Now at Lab. de Technicas Fisico-Quimicas, Junta de Invest. do Ultramar, Alameda D. AlL Henriques, 4I-4 Esq. Lisbon, Portugal.

2

Now at the Department of Geology, The University, Manchester 13, England.

References

Agrell, (S. O.), Bown, (M. G.), and McKie, (D.), 1965. Deerite, howieite, and zussmanite, three new minerals from the Franciscan of the Laytonville District, Mendocino Co., California. Min. Mag. 35, liv; Amer. Min. 50, 278.Google Scholar
Donnav, (G.), Donnay, (J. D. H.), and Takeda, (H.), 1964a. Trioctahedral one layer micas. II. Prediction of the structure from composition and cell dimensions. Acta Cryst. 17, 1374.CrossRefGoogle Scholar
Donnav, (G.), Morimoto, (N.), Takeoa, (H.), and Donnay, (J. D. H.), 1964b. Trioctahedral one layer micas. I. Crystal structure of a synthetic iron mica. Ibid. 1369.CrossRefGoogle Scholar
Dornberger-Schiff, (K.), 1961. The symmetry and structure of strontium germanate (SrGeO3) as a structural model for pseudowollastonite, Ca(SiO3). Soviet Physics, Crystallography, 6, 694, transl, from , 6, 859 [M.A. 16-133].Google Scholar
Freed, (R. L.), 1969. Determination and refinement of the crystal structure of margarosanite, PbCa3Si3O9 . Zeit. Krist. (in the press).10.1524/zkri.1969.128.3-6.213CrossRefGoogle Scholar
Henshaw, (D. E.), 1956. The structure of wadeite. Min. Mag. 30, 585.Google Scholar
Howells, (E. R.), Phillips, (D. C.), and Rogers, (O.), 1950. The probability distribution of X-ray intensities. II. Experimental investigation and the X-ray detection of centres of symmetry. Acta. Cryst. 3, 210.10.1107/S0365110X50000513CrossRefGoogle Scholar
Lopes-Vieira, (A.) and Zussman, (J.), 1967. The crystal structure of the mineral zussmanite. Min. Mag.. 36, 292.Google Scholar
Rogers, (D.) and Wilson, (A. J. C.), 1953. The probability distribution of X-ray intensities. V. A note: on some hypersymmetric distributions. Acta Cryst. 6, 439.10.1107/S0365110X53001289CrossRefGoogle Scholar
Zachariasen, (W. H.), 1930. The crystal structure of benitoite, BaTiSi3O3 . Zeit. Krist. 74, 139.Google Scholar
Zoltai, (T.), 1960. Classification of silicates and other minerals with tetrahedral structures. Amer. Min. 45, 960.Google Scholar
Zvyagin, (B. B.) and Mishchenko, (K. S.) , 1962. Electronographic data on the structure of phlogopite-biotite. Soviet Physics: Crystallography, 7, 502; transl, from , 7, 623.Google Scholar