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: Ae951, T = 298 K
_database_code_amcsd 0004214
9.6554 8.7998 5.2900 90 107.304 90 C2/c
atom      x     y     z  occ  Uiso
Na2       0 .2994   .25 .951 .0134
Ca2       0 .2994   .25 .049 .0134
Fe3+1     0 .8992   .25 .951 .0034
Fe2+1     0 .8992   .25 .049 .0034
Si    .2905 .0896 .2352      .0027
O1    .1144 .0786 .1381      .0044
O2    .3586 .2555 .3019      .0077
O3    .3520 .0088 .0111      .0056