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, 1st run, T = 25 C _database_code_amcsd 0008666 8.0944 8.0944 8.0944 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso AlT .125 .125 .125 .125 .0048 MgT .125 .125 .125 .871 .0048 ZnT .125 .125 .125 .004 .0048 AlM .5 .5 .5 .906 .0039 MgM .5 .5 .5 .0625 .0039 CrM .5 .5 .5 .0305 .0039 FeM .5 .5 .5 .001 .0039 O .26348 .26348 .26348 .0048