Raman spectroscopic study of the tellurite minerals : carlfriesite and spiroffite

Frost, Ray L. and Dickfos, Marilla J. and Keeffe, Eloise C. (2009) Raman spectroscopic study of the tellurite minerals : carlfriesite and spiroffite. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, 71(5). pp. 1663-1666.

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DOI: 10.1016/j.saa.2008.06.014

Official URL: http://www.sciencedirect.com/science/journal/13861...

Abstract

Raman spectroscopy has been used to study the tellurite minerals spiroffite and carlfriesite, which are minerals of formula type A2(X3O8) where A is Ca2+ for the mineral carlfriesite and is Zn2+ and Mn2+ for the mineral spiroffite. Raman bands for spiroffite observed at 721 and 743 cm-1 , and 650 cm-1 are attributed to the ν1 (Te3O8)2- symmetric stretching mode and the ν3 (Te3O8)2- antisymmetric stretching modes respectively. A second spiroffite mineral sample provided a Raman spectrum with bands at 727 cm-1 assigned to the ν1 (Te3O8)2- symmetric stretching modes and the band at 640 cm-1 accounted for by the ν3 (Te3O8)2- antisymmetric stretching mode. The Raman spectrum of carlfreisite shiowed an intense band at 721 cm-1. Raman bands for spiroffite, observed at (346, 394) and 466 cm-1 are assigned to the (Te3O8)2- ν2 (A1) bending mode and ν4 (E) bending modes. The Raman spectroscopy of the minerals carlfriesite and spiroffite are difficult because of the presence of impurities and other diagenetically related tellurite minerals.

ID Code:	17256
Item Type:	Journal Article
Keywords:	tellurite, tellurate, Raman spectroscopy, spiroffite, carlfriesite, rajite, denningite, zemannite, emmonsite
ISSN:	1386-1425
Subjects:	Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) Australian and New Zealand Standard Research Classification > CHEMICAL SCIENCE (030000) > PHYSICAL CHEMISTRY (INCL. STRUCTURAL) (030600) > Structural Chemistry and Spectroscopy (030606)
Divisions:	Schools > School of Physical and Chemical Sciences QUT Faculties and Divisions > Faculty of Science and Technology
Copyright Owner:	Copyright 2009 Elsevier
Copyright Statement:	Reproduced in accordance with the copyright policy of the publisher
Deposited On:	02 Feb 2009 13:26
Last Modified:	10 Feb 2010 02:22

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