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: Ae401, T = 298 K
_database_code_amcsd 0004201
9.7560 8.9252 5.2739 90 106.031 90 C2/c
atom      x     y     z  occ  Uiso
Ca2       0 .3007   .25 .615 .0103
Na2       0 .3007   .25 .385 .0103
Fe2+1     0 .9037   .25 .615 .0056
Fe3+1     0 .9037   .25 .385 .0056
Si    .2885 .0914 .2335      .0035
O1    .1166 .0845 .1459      .0081
O2    .3603 .2507 .3151      .0094
O3    .3510 .0153 .0012      .0074