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Crystal structure of macphersonite (Pb4SO4(CO3)2(OH)2): comparison with leadhillite

Published online by Cambridge University Press:  05 July 2018

Ian M. Steele ,
Joseph J. Pluth  and
Alec Livingstone
Ian M. Steele
Affiliation:
Department of Geophysical Sciences, The University of Chicago, Chicago IL 60637, USA
Joseph J. Pluth
Affiliation:
Department of Geophysical Sciences, The University of Chicago, Chicago IL 60637, USA Consortium for Advanced Radiation Sources, The University of Chicago, Chicago IL 60637, USA Materials Research Science and Engineering Center, The University of Chicago, Chicago IL 60637, USA
Alec Livingstone
Affiliation:
Department of Geology, The Royal Museum of Scotland, Chambers St., Edinburgh EH1 1JF, UK
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Abstract

The crystal structure of macphersonite (Pb4SO4(CO3)2(OH)2, Pcab, a = 9.242(2), b = 23.050(5), c = 10.383(2) Å) from Leadhills, Scotland has been determined to an R = 0.053. The structure has many features in common with its polymorph leadhillite including three distinct types of layers. Layer A includes sulphate tetrahedra, Layer B is composed of Pb and OH, while Layer C is composed of Pb and CO3 with topology identical to that in cerussite. In both macphersonite and leadhillite these layers are stacked along [010] as …BABCCBABCC… The double CC layer is almost identical in the two structures and forms a structural backbone and occurs in other structures including hydrocerussite and plumbonacrite. The sulphate layer shows the greatest difference between the two structures and can be described by a pattern of up or down pointing tetrahedra. For macphersonite the sequence along [001] is …UDUDUD… while in leadhillite the sequence along [010] is …UDDUUDDU… This latter sequence effectively doubles b relative to the equivalent direction in macphersonite. Susannite, a third polymorph, may have yet another sequence of sulphates to give trigonal symmetry; by heating leadhillite, displacive movements of sulphate groups may occur with a conversion to susannite.

Keywords

macphersoniteleadhillitesusannitecerussitehydrocerussitecarbonatesulphate
Type
Research Article
Information
Mineralogical Magazine , Volume 62 , Issue 4 , August 1998 , pp. 451 - 459
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1998

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Footnotes

5

Present address: 6 St. Ronan's Terrace, Innerleithen, Peeblesshire EH44 6RB, Scotland

References

Cipriani, C., Corazza, M. and Pratesi, G. (1995) A new lead silicate sulfate hydroxide from Val Fucinaia, Tuscany, Italy. Per. Mineral., 64, 309–13.Google Scholar
Cowley, .M. (1955) Electron-diffraction study of the structure of basic lead carbonate, 2PbCO3.Pb(OH)2 . Acta. Crystallogr., 9, 391–6.CrossRefGoogle Scholar
Dunn, P.J., Braithwaite, R.S.W., Roberts, A.C. and Ramik, R.A. (1990) Kegelite from Tsumeb, Namibia: A redefinition. Amer. Mineral., 75, 702–4.Google Scholar
Giuseppetti, G., Mazzi, F. and Tadini, C. (1990) The crystal structure of leadhillite: Pb4(SO4)(CO3)2 (OH)2 . Neues Jahrb. Mineral., Mh., 255–68.Google Scholar
Livingstone, A. and Russell, J.D. (1985) X-ray powder data for susannite and its distinction from leadhillite. Mineral. Mag., 49, 759–61.CrossRefGoogle Scholar
Livingstone, A. and Sarp, H. (1984) Macphersonite, a new mineral from Leadhills, Scotland, and Saint- Prix, France - a polymorph of leadhillite and susannite. Mineral. Mag., 48, 277–82.CrossRefGoogle Scholar
Livingstone, A., Ryback, G., Fejer, E.E. and Stanley, C.J. (1987) Mattheddleite, a new mineral of the apatite group from Leadhills, Strathclyde Region. Scott. J. Geol., 23, 1–8.CrossRefGoogle Scholar
Mrose, M.E. and Christian, R.P. (1969) The leadhillitesusannite relation (abstract). Canad. Mineral., 10, 141.Google Scholar
Milodowski, A.E. and Morgan, D.J. (1984) Thermal reactions of leadhillite Pb4SO4(CO3)2(OH)2 . Clay Minerals, 19, 825–41.CrossRefGoogle Scholar
Olby, J.K. (1966) The basic lead carbonates. J. Inorg. Nucl. Chem., 28, 2507–12.CrossRefGoogle Scholar
Russell, J.D., Fraser, A.R. and Livingstone, A. (1984) The infrared absorption spectra of the three polymorphs of Pb4SO4(CO3)2(OH)2 (leadhillite, susannite, and macphersonite). Mineral. Mag., 48, 295–7.CrossRefGoogle Scholar
Sahl, K. (1974) Verfeinerung der Kristallstruktur von Cerussit, PbCO3 . Zeit. Kristallogr., 139, 215–22.CrossRefGoogle Scholar
Steele, I.M. and Pluth, J.J. (1998) Crystal structure of tetrabasic lead sulfate (4PbO.PbSO4): an intermediate phase in the production of lead acid batteries. J. Electrochem. Soc., 145, 528–33.CrossRefGoogle Scholar
Steele, I.M., Pluth, J.J. and Richardson, J.W. Jr., (1997) Crystal structure of tribasic lead sulfate (3PbO.PbSO4.H2O) by X-rays and neutrons: an intermediate phase in the production of lead acid batteries. Solid State Chemistry, 132, 173–81.CrossRefGoogle Scholar
Steele, I.M., Pluth, J.J. and Richardson, J.W. Jr., (1998) Occurrence and crystal structure of hydrocerussite from Leadhills, Scotland. In preparation.Google Scholar
Temple, A.K. (1956) The Leadhills-Wanlockhead lead and zinc deposits. Trans. Roy. Soc. Edin., 63, 85–113.CrossRefGoogle Scholar
Vinal, G.W. (1955) Storage Batteries (4th ed.). Wiley, 446 pp.Google Scholar