Fe12 O19 Sr Obradors X, Solans X, Collomb A, Samaras D, Rodriguez J, Pernet M, Font-Altaba M Journal of Solid State Chemistry 72 (1988) 218-224 Crystal structure of strontium hexaferrite Sr Fe12 O19 _cod_database_code 1006000 _database_code_amcsd 0013608 5.8844 5.8844 23.050 90 90 120 P6_3/mmc atom x y z occ Sr1 2/3 1/3 .25 Fe1 0 0 0 Fe2 0 0 .2542 .5 Fe3 1/3 2/3 .0272 Fe4 1/3 2/3 .1909 Fe5 .1689 .3378 -.1093 O1 0 0 .1516 O2 1/3 2/3 -.0552 O3 .1817 .3634 .25 O4 .1565 .3130 .0527 O5 .5047 .0094 .1508