Magnesite
Bromiley F A, Boffa Ballaran T, Langenhorst F, Seifert F
American Mineralogist 92 (2007) 829-836
Order and miscibility in the otavite - magnesite solid solution
Locality: synthetic
Sample: X_Mg = .5, synthesized at 500 C, 1 GPa, 96 h
Sample: disordered at T = 600 C, t = 20 min
_database_code_amcsd 0004322
4.7822 4.7822 15.691 90 90 120 R-3
atom    x     y    z  occ Uiso
CdA     0     0    0 .645 .019
MgA     0     0    0 .355 .019
MgB     0     0   .5 .645 .019
CdB     0     0   .5 .355 .019
C       0     0 .240      .024
O    .252 -.026 .249      .021