Siderite
Effenberger H, Mereiter K, Zemann J
Zeitschrift fur Kristallographie 156 (1981) 233-243
Crystal structure refinements of magnesite, calcite, rhodochrosite, siderite,
smithsonite, and dolomite, with discussion of some aspects of the
stereochemistry of calcite type carbonates
Locality: Ivigtut, Greenland
_database_code_amcsd 0020837
4.6916 4.6916 15.3796 90 90 120 R-3c
atom      x y   z occ U(1,1) U(2,2) U(3,3)  U(1,2)  U(1,3)  U(2,3)
Fe        0 0   0 .95 .00580 .00580 .00514  .00290       0       0
Mn        0 0   0 .05 .00580 .00580 .00514  .00290       0       0
C         0 0 .25     .00571 .00571 .00511 .002855       0       0
O    .27427 0 .25     .00586 .00850 .00915  .00425 -.00077 -.00154