Raman microscopy of the molybdate minerals koechlinite, iriginite and lindgrenite

Authors: Frost, Ray L.; Duong, Loc; Weier, Matt

Source: Neues Jahrbuch für Mineralogie - Abhandlungen, Volume 180, Number 3, November 2004 , pp. 245-260(16)

Publisher: E. Schweizerbart'sche Verlagsbuchhandlung

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Abstract:

A series of molybdate bearing minerals including wulfenite, powellite, lindgrenite and iriginite have been analysed by Raman microscopy. These minerals are closely related and often have related paragenesis. Raman microscopy enables the selection of individual crystals of these minerals for spectroscopic analysis even though several of the minerals can be found in the same matrix because of the paragenetic relationships between the minerals. The molybdenum bearing minerals lindgrenite, iriginite and koechlinite were studied by scanning electron microscopy and compositionally analysed by EDX methods using an electron probe before Raman spectroscopic analyses. The Raman spectra are assigned according to factor group analysis and related to the structure of the minerals. These minerals have characteristically different Raman spectra.

Keywords: LINDGRENITE; IRIGINITE; POWELLITE; WULFENITE; MOLYBDATE; RAMAN SPECTROSCOPY

Document Type: Research article

DOI: http://dx.doi.org/10.1127/0077-7757/2004/0180-0245

Publication date: 2004-11-01

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