CAMS spinel 78 90 Capobianco & Drake 1990 Fe-Ni-S Fe alloy 30 110 Fleet & Stone 1991 Fe-Ni-S Pt-Fe alloy 3 4 Fleet & Stone 1991 Fe-Ni-S sulfide 0.05 0.3 Fleet & Stone 1991 FeS-NiS-CuS 2.3 3.8 Fleet et al. 1993 komatiite-tholeiite 1 3 Barnes et al. 1994 komatiite-tholeiite 0.243 20.9 Barnes et al. 1994