Spinel Carbonin S, Martignago F, Menegazzo G, Dal Negro A Physics and Chemistry of Minerals 29 (2002) 503-514 X-ray single-crystal study of spinels: in situ heating Sample: NAT, Cooling, T = 200 C _database_code_amcsd 0008681 8.1036 8.1036 8.1036 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso AlT .125 .125 .125 .215 .0070 MgT .125 .125 .125 .781 .0070 ZnT .125 .125 .125 .004 .0070 AlM .5 .5 .5 .861 .0062 MgM .5 .5 .5 .1075 .0062 CrM .5 .5 .5 .0305 .0062 FeM .5 .5 .5 .001 .0062 O .26230 .26230 .26230 .0084