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_q1, treated at 700 C for 210 min
Locality: Kimito, Finland
_database_code_amcsd 0018704
4.7475 4.7475 9.2690 90 90 90 P4_2/mnm
atom      x     y      z  occ
Fe(A)     0     0      0 .477
Ta(A)     0     0      0 .523
Fe(B)     0     0 .33275 .261
Ta(B)     0     0 .33275 .674
Nb(B)     0     0 .33275 .065
O1    .3029 .3029      0
O2    .2991 .2991  .3313