Spinel Meducin F, Redfern S A T, Le Godec Y, Stone H J, Tucker M G, Dove M T, Marshall W G American Mineralogist 89 (2004) 981-986 Study of cation order-disorder in MgAl2O4 spinel by in situ neutron diffraction up to 1600 K and 3.2 GPa Sample at T = 1202 K and P = 2.0 GPa, inversion parameter x = .453 _database_code_amcsd 0003573 8.1274 8.1274 8.1274 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .547 .0148 AlT .125 .125 .125 .453 .0148 AlOct .5 .5 .5 .7735 .0399 MgOct .5 .5 .5 .2265 .0399 O .26179 .26179 .26179 .0111