CAMS spinel 0.02 Capobianco & Drake 1990 Fe-Ni-S Fe alloy 0.9 1.8 Fleet & Stone 1991 Fe-Ni-S Pt-Fe alloy 0.25 0.4 Fleet & Stone 1991 Fe-Ni-S sulfide 0.02 Fleet & Stone 1991 FeS-NiS-CuS 0.13 0.43 Fleet et al. 1993 komatiite-tholeiite 0 0.8 Barnes et al. 1994 komatiite-tholeiite 0.002 0.304 Barnes et al. 1994 synthetic An-Di metal 3800 16000000 Borisov et al. 1994 pyrrhotite 0.0068 0.039 Li et al. 1993