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 = 200 C _database_code_amcsd 0008662 8.1044 8.1044 8.1044 90 90 90 *Fd3m .125 .125 .125 atom x y z occ Uiso AlT .125 .125 .125 .134 .0074 MgT .125 .125 .125 .862 .0074 ZnT .125 .125 .125 .004 .0074 AlM .5 .5 .5 .9015 .0057 MgM .5 .5 .5 .067 .0057 CrM .5 .5 .5 .0305 .0057 FeM .5 .5 .5 .001 .0057 O .26337 .26337 .26337 .0070