Spinel
Meducin F, Redfern S A T, Le Godec Y, Stone H J, Tucker M G, Dove M T, Marshall W G
American Mineralogist 89 (2004) 981-986
Study of cation order-disorder in MgAl2O4 spinel by in situ neutron
diffraction up to 1600 K and 3.2 GPa
Sample at T = 757 K and P = 0.4 GPa, inversion parameter x = .292
_database_code_amcsd 0003571
8.0874 8.0874 8.0874 90 90 90 *Fd3m
.125 .125 .125
atom       x      y      z  occ  Uiso
MgT     .125   .125   .125 .708 .0154
AlT     .125   .125   .125 .292 .0154
AlOct     .5     .5     .5 .854 .0261
MgOct     .5     .5     .5 .146 .0261
O     .26175 .26175 .26175      .0038