Chromite Lenaz D, Skogby H, Princivalle F, Halenius U Physics and Chemistry of Minerals 31 (2004) 633-642 Structural changes and valence states in the MgCr2O4-FeCr2O4 solid solution series Sample: Fe2-55 _database_code_amcsd 0008914 8.3613 8.3613 8.3613 90 90 90 *Fd-3m .125 .125 .125 atom x y z occ Uiso FeA .125 .125 .125 .67 .0060 MgA .125 .125 .125 .33 .0060 CrB .5 .5 .5 .0036 O .26219 .26219 .26219 .0046