Franklinite Lucchesi S, Russo U, Della Giusta A European Journal of Mineralogy 11 (1999) 501-511 Cation distribution in natural Zn-spinels: franklinite Sample: FRK3 _database_code_amcsd 0006781 8.4641 8.4641 8.4641 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso ZnT .125 .125 .125 .609 .0091 MnT .125 .125 .125 .315 .0091 MgT .125 .125 .125 .017 .0091 AlT .125 .125 .125 .033 .0091 FeT .125 .125 .125 .027 .0091 ZnM .5 .5 .5 .0035 .0091 MnM .5 .5 .5 .0275 .0091 MgM .5 .5 .5 .013 .0091 AlM .5 .5 .5 .0005 .0091 FeM .5 .5 .5 .955 .0091 O .2614 .2614 .2614 .0097