Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-27T02:03:04.408Z Has data issue: false hasContentIssue false
  • English
  • Français

A new telluride topology: the crystal structure of honeaite Au3TlTe2

Published online by Cambridge University Press:  02 January 2018

Mark D. Welch ,
J. W. Still ,
C. M. Rice  and
C. J. Stanley
Mark D. Welch*
Affiliation:
Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
J. W. Still
Affiliation:
Department of Geology & Petroleum Geology, School of Geosciences, Meston Building, Kings College, Aberdeen AB24 3UE, UK
C. M. Rice
Affiliation:
Department of Geology & Petroleum Geology, School of Geosciences, Meston Building, Kings College, Aberdeen AB24 3UE, UK
C. J. Stanley
Affiliation:
Department of Earth Sciences, Natural History Museum, Cromwell Road, London SW7 5BD, UK
*
*E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

The crystal structure of the first thallium-bearing gold telluride, honeaite Au3TlTe2, is reported and its topological novelty discussed. Honeaite is orthorhombic, space group Pbcm and unit-cell parameters a = 8.9671(4), b = 8.8758(4), c= 7.8419(5) Å, V = 624.14(6) Å3 (Z = 4). Its structure has been refined to R1 = 0.033, wR2 = 0.053, Goof = 1.087. The structure is based upon a corrugated double-sheet comprising two sub-sheets, each composed of six-memberedrings of corner-linked TeAu3 pyramids in which the Te lone pair is stereoactive. Rows of thallium atoms lie in the grooves between sheets and provide the only inter-sheet connectivity via Tl-Au bonds. There is extensive Au-Au bonding linking the two sub-sheets of the double-sheet.The structure is distinct from those of the 1:2 (Au,Ag)-tellurides: calaverite AuTe2, sylvanite AuAgTe4 and krennerite Au3AgTe8, which are based upon sheet structures with no connecting inter-sheet atoms. It also differs fundamentally from the structuresof synthetic phases Ag3TlTe2 and Ag18Tl4Te11, both of which have an analogous stoichiometry. In contrast to the pyramidal TeAu3 group of honeaite and krennerite, Ag does not form the corresponding TeAg3 group in itstellurides.

Keywords

honeaitenew mineralcrystal structuretelluride
Type
Research Article
Information
Mineralogical Magazine , Volume 81 , Issue 3 , June 2017 , pp. 611 - 618
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2017

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Bindi, L. and Cipriani, C. (2004) Structural and physical properties of fischesserite, a rare gold—silver selenide from the De Lamar mine, Owyhee County, Idaho, USA. The Canadian Mineralogist, 42, 1733–1737.CrossRefGoogle Scholar
Brun, G., Moreau, J.M., Liautard, B. and Allemand, J. (1992) A new phase in the Tl-Ag-Te system: crystal structure of Tl4Ag18Te11. Journal of Alloys and Compounds, 178, 85–90.Google Scholar
Cenzual, K., Gelato, L.M., Pathé, E. and Penzo, M. (1991) Inorganic structure types with revised space groups I. Acta Crystallographica, B47, 433–39.CrossRefGoogle Scholar
Dye, M.D. and Smyth, J.R. (2012) The crystal structure and genesis of krennerite, Au3AgTe8 . The Canadian Mineralogist, 50, 119–127.CrossRefGoogle Scholar
Farrugia, L.J. (1999) WinGX: An integrated system of Windows Programs for the solution, refinement and analysis of single-crystal X-ray diffraction data. Journal of Applied Crystallography, 32, 837–838.CrossRefGoogle Scholar
Frueh, A.J. (1959) The crystallography of petzite, Ag3 AuTe2 . American Mineralogist, 44, 693–701.Google Scholar
Hillebrand, W.F. (1899) Mineralogical notes: melonite (?), coloradoite, petzite, hessite. American Journal of Science, 4th series, 8, 295–298.CrossRefGoogle Scholar
Klepp, K.O. and Weithaler, C. (1996) The crystal structures of CsAu3S2, RbAu3Se2 and CsAu3Se2 and their relationship to the CsCu3S2 structure type. Journal of Alloys and Compounds, 243, 1–5.CrossRefGoogle Scholar
Nechaev, S.V. and Cook, N.J. (2000) A natural occurrence of Au3TlTe2 from the Maiskoe Au-deposit, Ukraine. Neues Jahrbuch für Mineralogie, Monatschefte, Heft , 12, 557–562.Google Scholar
Rice, C.M., Welch, M.D., Still, J.W., Criddle, A.J. and Stanley, C.J. (2015) Honeaite, IMA 2015-060. CNMNC Newsletter No. 27, 1229. Mineralogical Magazine, 79, 1229–1236.Google Scholar
Rice, C.M., Welch, M.D., Still, J.W., Criddle, A.J. and Stanley, C.J. (2016) Honeaite, a new gold-thallium-telluride from the Eastern Goldfields, Yilgarn Craton, Western Australia. European Journal of Mineralogy, 28, 979–990.CrossRefGoogle Scholar
Schütte, W.J. and De Boer, J.L. (1988) The incommensu-rately modulated structure of calaverite, AuTe2 . Acta Crystallographica, B44, 486-94.CrossRefGoogle Scholar
Sheldrick, G.M. (2008) A short history of SHELX. Acta Crystallographica, A64, 112–122.CrossRefGoogle Scholar
Tunell, G. (1941) The atomic arrangement of sylvanite. American Mineralogist, 26, 457–477.Google Scholar
Wilson, A.J.C. (editor) (1992) International Tables for Crystallography, Volume C. Kluwer Academic Publishers, Dordrecht, The Netherlands.Google Scholar
Supplementary material: File

Welch et al. supplementary material

Crystallographic information file

Download Welch et al. supplementary material(File)
File 10.6 KB