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 = 900 C _database_code_amcsd 0004055 8.1581 8.1581 8.1581 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .694 .0160 AlT .125 .125 .125 .262 .0160 FeT .125 .125 .125 .037 .0160 AlM .5 .5 .5 .826 .0156 MgM .5 .5 .5 .1495 .0156 FeM .5 .5 .5 .0245 .0156 O .26136 .26136 .26136 .0195