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 = .9, synthesized at 800 C, 1 GPa, 1 h
_database_code_amcsd 0004346
4.6638 4.6638 15.1720 90 90 120 R-3c
atom    x y   z occ Uiso
Cd      0 0   0  .1 .029
Mg      0 0   0  .9 .029
C       0 0 .25     .036
O    .276 0 .25     .029