A plethora of geophysical, geo-
chemical, and geodynamical observations indicate that
the terrestrial planets have differentiated into silicate
crusts and mantles that surround a dense core. The
latter consists primarily of Fe and some lighter
alloying elements (e.g., S, Si, C, O, and H) [1]¿. The
Martian meteorites show evidence of chalcophile
element depletion, suggesting that the otherwise Fe-Ni-
rich core likely contains a sulfide component, which
influences physical state