data_global
_chemical_name_mineral 'Haradaite'
loop_
_publ_author_name
'Takeuchi Y'
'Joswig W'
_journal_name_full 'Mineralogical Journal'
_journal_volume 5 
_journal_year 1967
_journal_page_first 98
_journal_page_last 123
_publ_section_title
;
 The structure of haradaite and a note on the Si-O bond lengths in silicates
;
_database_code_amcsd 0014413
_chemical_compound_source 'Nodatamagawa manganese mine, Iwate, Japan'
_chemical_formula_sum 'Sr V Si2 O7'
_cell_length_a 7.06
_cell_length_b 14.64
_cell_length_c 5.33
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 550.900
_exptl_crystal_density_diffrn      3.698
_symmetry_space_group_name_H-M 'A m a m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2+y,1/2+z'
  '1/2+x,-y,z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  'x,y,-z'
  'x,1/2+y,1/2-z'
  '-x,-y,z'
  '-x,1/2-y,1/2+z'
  '1/2-x,y,z'
  '1/2-x,1/2+y,1/2+z'
  '1/2+x,-y,-z'
  '1/2+x,1/2-y,1/2-z'
  '-x,-y,-z'
  '-x,1/2-y,1/2-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Sr   0.25000   0.20580   0.00000   0.01608
V   0.25000   0.39310   0.50000   0.01710
Si   0.02230   0.10730   0.50000   0.01786
O1  -0.05870   0.15110   0.25280   0.01722
O2   0.00000   0.00000   0.50000   0.00633
O3   0.25000  -0.00030   0.00000   0.00633
O4   0.25000   0.13660   0.50000   0.00633