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: Ae503
_database_code_amcsd 0004203
9.7412 8.9086 5.2776 90 106.221 90 C2/c
atom      x     y     z  occ  Uiso
Ca2       0 .3007   .25 .506 .0121
Na2       0 .3007   .25 .494 .0121
Fe2+1     0 .9025   .25 .506 .0061
Fe3+1     0 .9025   .25 .494 .0061
Si    .2887 .0910 .2336      .0043
O1    .1163 .0829 .1444      .0088
O2    .3595 .2518 .3126      .0096
O3    .3511 .0138 .0036      .0086