Aegirine
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: Ae801
_database_code_amcsd 0004211
9.6804 8.8337 5.2831 90 106.877 90 C2/c
atom      x     y     z  occ  Uiso
Na2       0 .3004   .25 .825 .0131
Ca2       0 .3004   .25 .175 .0131
Fe3+1     0 .9003   .25 .825 .0055
Fe2+1     0 .9003   .25 .175 .0055
Si    .2899 .0904 .2343      .0039
O1    .1148 .0797 .1402      .0058
O2    .3587 .2544 .3050      .0086
O3    .3508 .0105 .0084      .0072