(Co.76Mg.25)Al2O4
Bosi F, Halenius U, D'Ippolito V, Andreozzi G B
American Mineralogist 97 (2012) 1834-1840
Blue spinel crystals in the MgAl2O4-CoAl2O4 series: Part II.
Cation ordering over short-range and long-range scales
Sample: CoAl67
Locality: synthetic
_database_code_amcsd 0019582
8.1010 8.1010 8.1010 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)
CoT    .125   .125   .125  .67 .00543 .00543 .00543       0       0       0
MgT    .125   .125   .125  .17 .00543 .00543 .00543       0       0       0
AlT    .125   .125   .125  .16 .00543 .00543 .00543       0       0       0
CoM      .5     .5     .5 .045  .0045  .0045  .0045 -.00027 -.00027 -.00027
MgM      .5     .5     .5  .04  .0045  .0045  .0045 -.00027 -.00027 -.00027
AlM      .5     .5     .5  .92  .0045  .0045  .0045 -.00027 -.00027 -.00027
O    .26321 .26321 .26321       .0078  .0078  .0078 -.00003 -.00003 -.00003