data_global
_chemical_name_mineral 'Heterosite'
loop_
_publ_author_name
'Bjorling C O'
'Westgren A'
_journal_name_full 'Geologiska Foreningens i Stockholm Forhandlingar'
_journal_volume 60 
_journal_year 1938
_journal_page_first 67
_journal_page_last 72
_publ_section_title
;
 Minerals of the Varustrask Pegmatite. IX. X-ray studies of triphylite,
 varulite and their oxidation products
;
_database_code_amcsd 0018613
_chemical_compound_source 'Varustrask pegmatite, Sweden'
_chemical_formula_sum 'Fe P O4'
_cell_length_a 4.760
_cell_length_b 9.680
_cell_length_c 5.819
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 268.121
_exptl_crystal_density_diffrn      3.736
_symmetry_space_group_name_H-M 'P b n m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '1/2-x,1/2+y,1/2-z'
  '1/2-x,1/2+y,z'
  '1/2+x,1/2-y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Fe  -0.02800   0.27800   0.25000
P   0.41700   0.09700   0.25000
O1  -0.25000   0.05600   0.25000
O2   0.25000   0.44400   0.25000
O3   0.19400   0.16700   0.02800