Aegirine
Ballet O, Coey J M D, Fillion G, Ghose A, Hewat A W, Regnard J R
Physics and Chemistry of Minerals 16 (1989) 672-677
Magnetic order in acmite; NaFeSi2O6
Sample: T = 14 K
_database_code_amcsd 0007464
9.68 8.83 5.30 90 107.3 90 C2/c
atom     x     y     z  occ
FeM1     0 .8991   .25 .992
NaM2     0 .2971   .25 .978
Si   .2890 .0918 .2377  .98
O1   .1141 .0791 .1387
O2   .3592 .2559 .3010
O3   .3540 .0072 .0113