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 Kim14_q0, untreated Locality: Kimito, Finland _database_code_amcsd 0018707 4.7551 4.7551 9.2810 90 90 90 P4_2/mnm atom x y z occ Fe(A) 0 0 0 .514 Ta(A) 0 0 0 .486 Fe(B) 0 0 .33264 .243 Ta(B) 0 0 .33264 .692 Nb(B) 0 0 .33264 .065 O1 .3033 .3033 0 O2 .3002 .3002 .3301