Combining Micro-Raman Spectroscopy and Scanning Electron Microscopy Mapping: A Stony Meteorite StudyOPEN ACCESS 

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Maya Musa, Riccardo Rossini, Daniela Di Martino, Maria Pia Riccardi, Massimiliano Clemenza, Giuseppe Gorini

Materials 2021, 14(24), 7585

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“Meteorite characterisation represents a privileged and unique opportunity to increase our knowledge about the materials composing the Universe and, particularly, the Proto Solar System. Moreover, meteorites studies evolve contextually with the development of analytical technologies. In the present paper, the results from an unclassified stony meteorite (chondrite) characterisation have been reported on the basis of the innovative analytical protocol presented here. Advanced Mapping by micro-Raman Spectroscopy and Scanning Electron Microscopy equipped with Energy Dispersive Spectroscopy have been combined to disclose molecular and elemental features on the same regions sample at a micrometric resolution. Thanks to their non-destructive properties, the mapping tools of both instruments have been applied to single chondrules analysis and the best match between the mineralogical information and the chemical composition has been obtained. This combined approach proved to be highly suitable in disclosing the crystallinity features of the phases, with in-depth spatial and morphological details too. “

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