Dolomite
Antao S M, Mulder W H, Hassan I, Crichton W A, Parise J B
American Mineralogist 89 (2004) 1142-1147
Cation disorder in dolomite, CaMg(CO3)2, and its influence on the
aragonite+magnesite - dolomite reaction boundary
Sample: P = 3 GPa, T = 675 K
_database_code_amcsd 0003600
4.7918 4.7918 15.8283 90 90 120 R-3
atom     x      y     z  occ  Uiso
Ca       0      0     0 .991 .0442
Mg       0      0     0 .009 .0442
Mg       0      0    .5 .991 .0442
Ca       0      0    .5 .009 .0442
C        0      0 .2308       .028
O    .2505 -.0453 .2437      .0217