The knowledge of the composition of the Martian surface and crust has strongly evolved in the last decade, especially thanks to the large number of missions that opened the case for aqueous alteration and crustal evolution. This session solicits abstracts on the chemistry and mineralogy of Mars obtained from planetary missions (either orbital or in situ such as from the Curiosity rover) or Martian meteorites, relevant to the understanding of Mars climate evolution as well as crust formation. We also solicit any works on laboratory data, modelling and terrestrial analogues that would help to understand the Martian
observations.