Isomorphic substitution in vanadinite [Pb5(VO4)3Cl]-a Raman spectroscopic study
Frost, Ray L., Crane, Martin, Williams, Peter A., & Kloprogge, J. Theo (2003) Isomorphic substitution in vanadinite [Pb5(VO4)3Cl]-a Raman spectroscopic study. Journal of Raman Spectroscopy, 34(3), pp. 214-220.
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.
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|Item Type:||Journal Article|
|Keywords:||infrared spectroscopy, Raman microscopy, vanadinite, mimetite, pyromorphite, apatite|
|Subjects:||Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > INORGANIC CHEMISTRY (030200)|
|Divisions:||Past > QUT Faculties & Divisions > Faculty of Science and Technology
Past > Schools > School of Physical & Chemical Sciences
|Copyright Owner:||Copyright 2003 John Wiley & Sons|
|Copyright Statement:||The definite version is available on publication at www3.interscience.wiley.com|
|Deposited On:||13 Apr 2005|
|Last Modified:||29 Feb 2012 12:59|
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