Raman spectroscopy, assisted by X‐ray fluorescence and laser‐induced breakdown spectroscopy, to characterise original and altered mineral phases in the NWA 2975 Martian shergottite

A fragment of the NWA 2975 Martian meteorite, an enriched basaltic shergottite, was analysed to complete its geochemical characterisation performed 10 years ago. By this means, feasibility employed techniques in a combined way for present and future space exploration missions can be tested. For aim, Raman spectroscopy used supported by micro energy dispersive X-ray fluorescence (μ-EDXRF) laser-induced breakdown (LIBS) accurate interpretation molecular elemental results. results from two setups, InVia Renishaw RLS Simulator, were compared. The major minerals detected pyroxenes (mainly augite, pigeonite enstatite) plagioclases shocked maskelynite). allowed defining different metal compositions these main based on secondary bands 200–500 cm−1 region. In addition, other found such as merrillite, well pyrrhotite apatite, several veins cracks agreement with initial report Meteoritical Bulletin. Moreover, it should highlighted that coesite very first time meteorite.