An X-ray magnetic circular dichroism (XMCD) study of Fe ordering in a synthetic MgAl2O4-Fe3O4 (spinel-magnetite) solid-solution series: Implications for magnetic properties and cation site ordering - Henderson, CMB; Pearce, CI; Charnock, JM; Harrison, RJ; Rosso, KM (AMERICAN MINERALOGIST, 2016)