Seidozerite Simonov V I, Belov N V Soviet Physics Crystallography 4 (1960) 146-157 The determination of the structure of seidozerite _database_code_amcsd 0015540 5.53 7.10 18.30 90 102.43 90 P2/c atom x y z occ Zr .200 .119 .074 .72 Ti .200 .119 .074 .25 Mn .5 .350 .25 .46 Mg .5 .350 .25 .34 Fe2+ .5 .350 .25 .10 Ti 0 .111 .25 .76 Nb 0 .111 .25 .04 Al 0 .111 .25 .10 Fe3+ 0 .111 .25 .09 SiI .718 .384 .104 SiII .718 .843 .104 NaI .195 .611 .069 .90 CaI .195 .611 .069 .10 NaII 0 .613 .25 .90 CaII 0 .613 .25 .10 NaIII .5 .860 .25 .90 CaIII .5 .860 .25 .10 OI .719 .615 .105 OII .438 .327 .070 OIII .438 .907 .071 OIV .908 .318 .050 OV .915 .912 .056 OVI .804 .314 .191 OVII .804 .915 .192 OVIII .243 .121 .185 FOH .294 .570 .193