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 Kim9_q2, treated at 750 C for 120 min
Locality: Kimito, Finland
_database_code_amcsd 0018705
4.7497 4.7497 9.2530 90 90 90 P4_2/mnm
atom      x     y      z  occ
Fe(A)     0     0      0 .521
Ta(A)     0     0      0 .479
Fe(B)     0     0 .33249 .239
Ta(B)     0     0 .33249 .696
Nb(B)     0     0 .33249 .065
O1    .3033 .3033      0
O2    .2988 .2988  .3297