data_global
_chemical_name_mineral 'Seidozerite'
loop_
_publ_author_name
'Simonov V I'
'Belov N V'
_journal_name_full 'Soviet Physics Crystallography'
_journal_volume 4 
_journal_year 1960
_journal_page_first 146
_journal_page_last 157
_publ_section_title
;
 The determination of the structure of seidozerite
;
_database_code_amcsd 0015540
_chemical_formula_sum 'Zr1.44 Ti1.26 Mn.46 Mg.34 Fe.19 Nb.04 Al.1 Si4 (Na3.6 Ca.4) O16 F2'
_cell_length_a 5.53
_cell_length_b 7.10
_cell_length_c 18.30
_cell_angle_alpha 90
_cell_angle_beta 102.43
_cell_angle_gamma 90
_cell_volume 701.671
_exptl_crystal_density_diffrn      3.537
_symmetry_space_group_name_H-M 'P 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,-y,1/2+z'
  '-x,y,1/2-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Zr   0.20000   0.11900   0.07400   0.72000
Ti   0.20000   0.11900   0.07400   0.25000
Mn   0.50000   0.35000   0.25000   0.46000
Mg   0.50000   0.35000   0.25000   0.34000
Fe2+   0.50000   0.35000   0.25000   0.10000
Ti   0.00000   0.11100   0.25000   0.76000
Nb   0.00000   0.11100   0.25000   0.04000
Al   0.00000   0.11100   0.25000   0.10000
Fe3+   0.00000   0.11100   0.25000   0.09000
SiI   0.71800   0.38400   0.10400   1.00000
SiII   0.71800   0.84300   0.10400   1.00000
NaI   0.19500   0.61100   0.06900   0.90000
CaI   0.19500   0.61100   0.06900   0.10000
NaII   0.00000   0.61300   0.25000   0.90000
CaII   0.00000   0.61300   0.25000   0.10000
NaIII   0.50000   0.86000   0.25000   0.90000
CaIII   0.50000   0.86000   0.25000   0.10000
OI   0.71900   0.61500   0.10500   1.00000
OII   0.43800   0.32700   0.07000   1.00000
OIII   0.43800   0.90700   0.07100   1.00000
OIV   0.90800   0.31800   0.05000   1.00000
OV   0.91500   0.91200   0.05600   1.00000
OVI   0.80400   0.31400   0.19100   1.00000
OVII   0.80400   0.91500   0.19200   1.00000
OVIII   0.24300   0.12100   0.18500   1.00000
FOH   0.29400   0.57000   0.19300   1.00000