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 Kim24_q3, treated at 700 C for 450 min
Locality: Kimito, Finland
_database_code_amcsd 0018725
4.7561 4.7561 9.2030 90 90 90 P4_2/mnm
atom      x     y      z  occ
Fe(A)     0     0      0 .985
Ta(A)     0     0      0 .015
Fe(B)     0     0 .33116 .007
Ta(B)     0     0 .33116 .928
Nb(B)     0     0 .33116 .065
O1    .3118 .3118      0
O2    .2943 .2943  .3219