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 600 C, 1 GPa, 19 h
_database_code_amcsd 0004334
4.7813 4.7813 15.7023 90 90 120 R-3
atom    x     y    z  occ Uiso
CdA     0     0    0 .634 .019
MgA     0     0    0 .366 .019
MgB     0     0   .5 .634 .019
CdB     0     0   .5 .366 .019
C       0     0 .244      .024
O    .252 -.026 .252      .021