(a) The changes in Fe³⁺/ΣFe ratio of residual magma during the crystallization of Group 1 angrite magma that is set by the core–mantle equilibration at 7 GPa and (b) chemical composition of the residual magma during crystallization. The pink line indicates the change in Mg# of the residual magma (Mg# = molar Mg/(Fe + Mg)×100). The pink shaded region is the Mg# range of Group 2 angrites.