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_q1, treated at 600 C for 5 min
Locality: Kimito, Finland
_database_code_amcsd 0018713
4.7547 4.7547 9.2893 90 90 90 P4_2/mnm
atom      x     y      z  occ
Fe(A)     0     0      0 .479
Ta(A)     0     0      0 .521
Fe(B)     0     0 .33285 .260
Ta(B)     0     0 .33285 .675
Nb(B)     0     0 .33285 .065
O1    .3011 .3011      0
O2    .2995 .2995  .3299