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_q3, treated at 750 C for 180 min
Locality: Kimito, Finland
_database_code_amcsd 0018706
4.7504 4.7504 9.2549 90 90 90 P4_2/mnm
atom      x     y      z  occ
Fe(A)     0     0      0 .552
Ta(A)     0     0      0 .448
Fe(B)     0     0 .33237 .224
Ta(B)     0     0 .33237 .711
Nb(B)     0     0 .33237 .065
O1    .3042 .3042      0
O2    .2989 .2989  .3281