Ba3 Fe2 O21 Ta6
Groult D, Chailleux J, Raveau B, Deschanvres A
Revue de Chimie Minerale 14 (1977) 1-10
Nouveaux tantalates A3 (Ta8-x Mx) O21 a structure en cages
_cod_database_code 1001301
_database_code_amcsd 0015380
9.116 9.116 11.93 90 90 120 P6_3/mcm
atom    x    y    z   occ
Ba1  .591    0  .25
Ta1  .243    0 .094 .6667
Fe1  .243    0 .094 .3333
Ta2   1/3  2/3    0
O1   .226    0  .25
O2   .787    0 .083
O3   .172 .493 .108