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 = 1362 K
_database_code_amcsd 0003616
4.8084 4.8084 16.2802 90 90 120 R-3
atom     x      y     z  occ Uiso
Ca       0      0     0 .865 .137
Mg       0      0     0 .135 .137
Mg       0      0    .5 .865 .137
Ca       0      0    .5 .135 .137
C        0      0 .2503      .112
O    .2457 -.0357 .2394      .109