Emissivity and reflectance spectra of sulfide-bearing samples: new constraints for the hermean surface composition.

The spectral characterization of planetary surfaces needs sets of laboratory's experiments to better characterize and model the properties on analogues or extraterrestrial material. Despite the differences in composition, the environmental condition, e.g. temperature and pressure, is also an important variable to consider on those laboratory experiments. We thus propose spectra of reflectance and emissivity of mixtures composed of a Mg-rich silicate and a sulfide component in the VIS-MIR (Visible-Mid Infrared) and in the TIR (Thermal Infrared) ranges acquired at PSL (Planetary Spectroscopy Laboratory) at DLR, Berlin