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: Ae201, T = 298 K
_database_code_amcsd 0004199
9.7929 8.9656 5.2696 90 105.496 90 C2/c
atom      x     y     z  occ  Uiso
Ca2       0 .3011   .25 .758 .0114
Na2       0 .3011   .25 .242 .0114
Fe2+1     0 .9049   .25 .758 .0073
Fe3+1     0 .9049   .25 .242 .0073
Si    .2881 .0920 .2327      .0049
O1    .1172 .0865 .1476      .0105
O2    .3612 .2498 .3184      .0117
O3    .3508 .0167 .9987      .0099