Jacobsite Lucchesi S, Russo U, Della Giusta A European Journal of Mineralogy 9 (1997) 31-42 Crystal chemistry and cation distribution in some Mn-rich natural and synthetic spinels Sample: JBS3 _database_code_amcsd 0006639 8.4454 8.4454 8.4454 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso MgT .125 .125 .125 .0256 .0089 MnT .125 .125 .125 .3968 .0089 FeT .125 .125 .125 .5706 .0089 ZnT .125 .125 .125 .0059 .0089 MgM .5 .5 .5 .2247 .0094 FeM .5 .5 .5 .7486 .0094 MnM .5 .5 .5 .0247 .0094 TiM .5 .5 .5 .001 .0094 O .25864 .25864 .25864 .0114