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 = 800 C _database_code_amcsd 0008675 8.1510 8.1510 8.1510 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso AlT .125 .125 .125 .258 .0157 MgT .125 .125 .125 .738 .0157 ZnT .125 .125 .125 .004 .0157 AlM .5 .5 .5 .8395 .0137 MgM .5 .5 .5 .129 .0137 CrM .5 .5 .5 .0305 .0137 FeM .5 .5 .5 .001 .0137 O .26174 .26174 .26174 .0179