Fe-Ni-S Pt-Fe alloy 380 600 Fleet & Stone 1991 Fe-Ni-S-P-X metal 52 Jones & Drake 1983 Fe-Ni-S-P-X-basalt metal 4.4 41 Jones & Drake 1983 Fe-Ni-X metal 1.35 Jones & Drake 1983 andesite-basalt 2.1 5.9 Fleet et al. 1993 basalt metal 2000 200000 Jones & Drake 1986 komatiite-tholeiite 2 5 Barnes et al. 1994 komatiite-tholeiite 1 10 Barnes et al. 1994 pyrrhotite 5.9 6.7 Li et al. 1993