Spinel
Andreozzi G B, Princivalle F, Skogby H, Della Giusta A
American Mineralogist 85 (2000) 1164-1171
Cation ordering and structural variations with temperature in
MgAl2O4 spinel: An X-ray single crystal study
Sample: Z(O)=-1.6, ionized cations, quenched from T = 950 C for 1 day
_database_code_amcsd 0002491
8.0837 8.0837 8.0837 90 90 90 *Fd3m
.125 .125 .125
atom      x      y      z   occ U(1,1) U(2,2) U(3,3) U(1,2) U(1,3) U(2,3)
Al       .5     .5     .5  .989  .0040  .0040  .0040 -.0002 -.0002 -.0002
Mg     .125   .125   .125 1.033  .0042  .0042  .0042      0      0      0
O    .26184 .26184 .26184        .0078  .0078  .0078  .0003  .0003  .0003