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Spectrochim Acta A Mol Biomol Spectrosc. 2009 Aug;73(3):410-9. doi: 10.1016/j.saa.2008.09.004. Epub 2008 Sep 23.

Application of portable Raman instruments for fast and non-destructive detection of minerals on outcrops.

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  • 1Charles University, Institute of Geochemistry, Mineralogy and Mineral Resources, Prague, Czech Republic.


Raman spectral signatures have been obtained in situ for a series of minerals using portable Raman instruments. Cerussite, anglesite, wulfenite, titanite, calcite, tremolite, andradite and quartz were detected using portable Raman spectrometer First Defender XL (Ahura). Baryte, almandine and realgar Raman spectra obtained by this instrument in the field were compared to the data measured by the other mobile Raman instrument Inspector Raman (DeltaNu). Bench Raman dispersive microspectrometer (InVia Reflex, Renishaw) was used for comparative purposes. All spectra were obtained using a 785nm diode excitation. Although displaying lower spectral resolution comparing with the laboratory confocal instrument both portable instruments permit unambiguous detection of minerals in the field. These possibilities designate portable Raman machines as excellent tools for field geological applications. Miniaturised Raman instrument combined with LIBS will be included in the payload of the EXO Mars mission and would open interesting research possibilities in other in situ field planetary studies.

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