Figure 1

Characteristic Raman spectra of (a) quartz, (b) anatase, (c) plagioclase, (d) k-feldspar, (e) mica, (f) calcite, (g) hornblende and (h) gypsum, collected in the laboratory by the RLS ExoMars Simulator (532 nm). The baseline of spectra e, g and h has been corrected using dedicated IDAT/SpectPro tools. Raman signals proceeding from additional compounds are labelled with an asterisk.