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 = 30 kbar _database_code_amcsd 0007392 8.0515 8.0515 8.0515 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 .65 .0025 .0025 .0025 0 0 0 AlB .5 .5 .5 .72 .0028 .0028 .0028 -.0002 -.0002 -.0002 O .2632 .2632 .2632 .85 .0033 .0033 .0033 .0000 .0000 .0000