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, Heating, 2nd run, T = 450 C _database_code_amcsd 0008668 8.1235 8.1235 8.1235 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso AlT .125 .125 .125 .127 .0107 MgT .125 .125 .125 .869 .0107 ZnT .125 .125 .125 .004 .0107 AlM .5 .5 .5 .905 .0083 MgM .5 .5 .5 .0635 .0083 CrM .5 .5 .5 .0305 .0083 FeM .5 .5 .5 .001 .0083 O .26346 .26346 .26346 .0092