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The structure of chloroxiphite, Pb3CuO2 (OH)2 Cl2*

Published online by Cambridge University Press:  05 July 2018

J. J. Finney ,
E. J. Graeber ,
A. Rosenzweig  and
R. D. Hamilton
J. J. Finney
Affiliation:
Department of Geology, Colorado School of Mines, Golden, Colorado 80401
E. J. Graeber
Affiliation:
Sandia Laboratories, Albuquerque, New Mexico 87115
A. Rosenzweig
Affiliation:
Department of Geology, Oberlin College, Oberlin, Ohio 44074
R. D. Hamilton
Affiliation:
Department of Geology, Colorado School of Mines, Golden, Colorado 80401
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Summary

Chloroxiphite, Pb3CuO2(OH)2Cl2, is monoclinic, space group P21/m, with a = 10·458, b = 5·750, c = 6·693 Å, β = 97·79°, Z = 2. The structure has been refined by the method of least squares from three-dimensional Mo-Kα intensity data to a conventional R value of 0·115. The structure consists of sheets of composition [Pb3 CuO2(OH)2]2−, in themselves made up of the layer sequence Pb-(O, OH, Cu)-Pb, lying parallel to (01). The structure contains eight-fold PbO4Cl4 and seven-fold PbO5Cl2 polyhedra common in other oxychlorides, Pb6 clusters and copper atoms in square planar, Cu(OH)4, coordination.

Type
Research Article
Information
Mineralogical Magazine , Volume 41 , Issue 319 , September 1977 , pp. 357 - 361
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1977

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Footnotes

*

This work was supported by the U.S. Energy Research and Development Administration.

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