Spinel Finger L W, Hazen R M, Hofmeister A M Physics and Chemistry of Minerals 13 (1986) 215-220 High-pressure crystal chemistry of spinel (MgAl2O4) and magnetite (Fe3O4): comparisons with silicate spinels Sample: P = 40 kbar _database_code_amcsd 0007393 8.034 8.034 8.034 90 90 90 *Fd3m .125 .125 .125 atom x y z Biso B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) MgA .125 .125 .125 .88 .0034 .0034 .0034 0 0 0 AlB .5 .5 .5 .81 .0031 .0031 .0031 .0001 .0001 .0001 O .2627 .2627 .2627 1.00 .0039 .0039 .0039 -.0006 -.0006 -.0006