data_global
_chemical_name_mineral 'Hydroromarchite'
loop_
_publ_author_name
'Abrahams I'
'Grimes S M'
'Johnston S R'
'Knowles J C'
_journal_name_full 'Acta Crystallographica, Section C'
_journal_volume 52 
_journal_year 1996
_journal_page_first 286
_journal_page_last 288
_publ_section_title
;
 Tin(II) oxyhydroxide by X-ray powder diffraction
;
_database_code_amcsd 0010306
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Sn3 O4 H2'
_cell_length_a 7.9268
_cell_length_b 7.9268
_cell_length_c 9.1025
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 571.948
_exptl_crystal_density_diffrn      4.902
_symmetry_space_group_name_H-M 'P -4 21 c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2-y,1/2-x,1/2+z'
  'y,-x,-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,z'
  '1/2+y,1/2+x,1/2+z'
  '-y,x,-z'
  '1/2+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
Sn1   0.12180   0.29170  -0.00380   0.02700
Sn2   0.00000   0.00000   0.27570   0.03200
O2  -0.09740   0.19450   0.12770   0.01900
O-H1   0.26060   0.09000   0.17300   0.01900