Tapiolite-(Fe)
Zema M, Tarantino S C, Giorgiani A
Mineralogical Magazine 70 (2006) 319-328
Structural changes induced by cation ordering in ferrotapiolite
Note: Crystal Kim14_q1, treated at 600 C for 20 min
Locality: Kimito, Finland
_database_code_amcsd 0018708
4.7526 4.7526 9.2501 90 90 90 P4_2/mnm
atom      x     y      z  occ
Fe(A)     0     0      0 .692
Ta(A)     0     0      0 .308
Fe(B)     0     0 .33196 .154
Ta(B)     0     0 .33196 .781
Nb(B)     0     0 .33196 .065
O1    .3062 .3062      0
O2    .2969 .2969  .3271