Spinel Martignago F, Andreozzi G B, Dal Negro A American Mineralogist 91 (2006) 306-312 Thermodynamics and kinetics of cation ordering in natural and synthetic Mg(Al,Fe3+)2O4 spinels from in situ high-temperature X-ray diffraction Locality: Shishimsk Mountains, Urals, Russia Sample: 3dis, T = 700 C _database_code_amcsd 0004053 8.1423 8.1423 8.1423 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .736 .0130 AlT .125 .125 .125 .223 .0130 FeT .125 .125 .125 .034 .0130 AlM .5 .5 .5 .8505 .0125 MgM .5 .5 .5 .128 .0125 FeM .5 .5 .5 .0225 .0125 O .26189 .26189 .26189 .0162