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 Kim20_q3, treated at 600 C for 50 min
Locality: Kimito, Finland
_database_code_amcsd 0018715
4.7509 4.7509 9.2811 90 90 90 P4_2/mnm
atom      x     y      z  occ
Fe(A)     0     0      0 .483
Ta(A)     0     0      0 .517
Fe(B)     0     0 .33272 .259
Ta(B)     0     0 .33272 .676
Nb(B)     0     0 .33272 .065
O1    .3006 .3006      0
O2    .2996 .2996  .3305