Raman spectroscopic study of the tellurite minerals : carlfriesite and spiroffite
Frost, Ray L., Dickfos, Marilla J., & 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.
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.
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|Item Type:||Journal Article|
|Keywords:||tellurite, tellurate, Raman spectroscopy, spiroffite, carlfriesite, rajite, denningite, zemannite, emmonsite|
|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:||Past > QUT Faculties & Divisions > Faculty of Science and Technology|
Past > Schools > School of Physical & Chemical Sciences
|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:||01 Mar 2012 00:02|
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