Figure 6: Chemical characteristics of akimotoite/hemleyite.

Fe/(Fe + Mg) ratios plotted against the (Ca + Na) contents (in a.p.f.u) for the akimotoite/hemleyite solid solution. Filled circles correspond to hemleyite, empty circles refer to literature data^{8,32,33,35,42,43,44,45,46,47,48,49}. The dashed arrow gives the tendency.