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: Ae751, T = 298 K
_database_code_amcsd 0004210
9.6953 8.8491 5.2856 90 106.778 90 C2/c
atom      x     y     z  occ  Uiso
Na2       0 .3005   .25 .751 .0104
Ca2       0 .3005   .25 .249 .0104
Fe3+1     0 .9006   .25 .751 .0053
Fe2+1     0 .9006   .25 .249 .0053
Si    .2897 .0905 .2336      .0018
O1    .1147 .0804 .1400      .0047
O2    .3590 .2544 .3063      .0072
O3    .3514 .0121 .0074      .0056