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 0008676 8.1510 8.1510 8.1510 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso AlT .125 .125 .125 .258 .0154 MgT .125 .125 .125 .738 .0154 ZnT .125 .125 .125 .004 .0154 AlM .5 .5 .5 .8395 .0138 MgM .5 .5 .5 .129 .0138 CrM .5 .5 .5 .0305 .0138 FeM .5 .5 .5 .001 .0138 O .26174 .26174 .26174 .0176