Hedenbergite
Redhammer G J, Amthauer G, Roth G, Tippelt G, Lottermoser W
American Mineralogist 91 (2006) 1271-1292
Single crystal X-ray diffraction and temperature dependent 57Fe Mossbauer
spectroscopy on the hedenbergite - aegirine (Ca,Na)(Fe2+,Fe3+)Si2O6 solid solution
Locality: synthetic
Sample: Ae251, T = 298 K
_database_code_amcsd 0004200
9.7938 8.9685 5.2632 90 105.520 90 C2/c
atom      x     y     z  occ  Uiso
Ca2       0 .3013   .25 .742 .0093
Na2       0 .3013   .25 .258 .0093
Fe2+1     0 .9049   .25 .742 .0054
Fe3+1     0 .9049   .25 .258 .0054
Si    .2881 .0918 .2328      .0031
O1    .1174 .0865 .1476      .0078
O2    .3608 .2496 .3177      .0090
O3    .3505 .0165 .9987      .0078