Isomorphic substitution in vanadinite [Pb5(VO4)3Cl]-a Raman spectroscopic study

Frost, Ray L. and Crane, Martin and Williams, Peter A. and Kloprogge, J. Theo (2003) Isomorphic substitution in vanadinite [Pb5(VO4)3Cl]-a Raman spectroscopic study. Journal of Raman Spectroscopy, 34(3). pp. 214-220.

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DOI : 10.1002/jrs.978

Abstract

The Raman and infrared spectroscopy of three vanadinite [Pb5(VO4)Cl] specimens from three localities has been studied. Single crystal Raman spectra were obtained and the spectra were found to be both orientation and temperature dependent. Measurement of the Raman spectra at liquid nitrogen temperature enabled better band separation and increased intensities of weak bands through band narrowing enabling, the assignment of the bands in vanadinites to be made. Two types of isomorphous substitution are identified (a) substitution in the bulk of the crystal where electron beam microanalysis identifies the presence of calcium and copper. (b) surface substitution where infrared spectroscopy shows the isomorphous substitution of vanadate by phosphate and of chloride by hydroxyl groups.

ID Code:	1017
Item Type:	Journal Article
Additional Information :	For more information, please refer to the journal's website (see hypertext link) or contact the author.
Keywords :	infrared spectroscopy, Raman microscopy, vanadinite, mimetite, pyromorphite, apatite
ISSN:	0377-0486
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)
Divisions:	QUT Faculties and Divisions > Faculty of Science
Copyright Owner :	Copyright 2003 John Wiley & Sons
Deposited On:	13 Apr 2005
Last Modified:	03 Dec 2008 12:19

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