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Raman spectroscopy of synthetic (Mg,Fe)SiO3 single crystals; an analytical tool for natural orthopyroxenes

Roland Stalder, Andreas Kronz and Burkhard C. Schmidt
Raman spectroscopy of synthetic (Mg,Fe)SiO3 single crystals; an analytical tool for natural orthopyroxenes (in Sixth European conference on Mineralogy and spectroscopy, Eugen Libowitzky (editor) and Manfred Wildner (editor))
European Journal of Mineralogy (January 2009) 21 (1): 27-32

Abstract

Single crystals of synthetic orthopyroxene were analyzed by Raman spectroscopy and electron microprobe in order to calibrate the effect of chemical composition on the position of Raman bands. For the Raman peak close to 670 cm (super -1) we obtain the correlations between Raman shift (RS) and chemical composition FeO(wt%) = -1.998.RS(cm (super -1) )+1373.2 and MgO(wt%) = 1.4537.RS(cm (super -1) ) - 959.02, allowing the determination of FeO with an accuracy of + or -0.4 wt% and MgO with an accuracy of + or -0.3 wt%, corresponding to less than 1 mole% ferrosilite or enstatite. A test of this calibration using natural orthopyroxene crystals shows larger deviations up to 3 wt%. These deviations can mainly be related to significant amounts of CaO and Al (sub 2) O (sub 3) , leading to an overestimation of FeO or MgO, respectively.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 21
Serial Issue: 1
Title: Raman spectroscopy of synthetic (Mg,Fe)SiO3 single crystals; an analytical tool for natural orthopyroxenes
Title: Sixth European conference on Mineralogy and spectroscopy
Author(s): Stalder, RolandKronz, AndreasSchmidt, Burkhard C.
Author(s): Libowitzky, Eugeneditor
Author(s): Wildner, Manfrededitor
Affiliation: Institut fuer Mineralogie und Petrographie, Innsbruck, Austria
Pages: 27-32
Published: 200901
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
Meeting name: Sixth European conference on Mineralogy and spectroscopy
Meeting location: Stockholm, SWE, Sweden
Meeting date: 20070908Sept. 8-11, 2007
References: 14
Accession Number: 2009-032662
Categories: General geochemistryMineralogy of silicates
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
Secondary Affiliation: Universitaet Goettingen, DEU, Federal Republic of Germany
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Schweizerbart'sche Verlagsbuchhandlung. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 200918
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