data_global
_chemical_name_mineral 'Parasibirskite'
loop_
_publ_author_name
'Takahashi R'
'Kusachi I'
'Miura H'
_journal_name_full 'Journal of Mineralogical and Petrological Sciences'
_journal_volume 105 
_journal_year 2010
_journal_page_first 70
_journal_page_last 73
_publ_section_title
;
 Crystal structure of parasibirskite (CaHBO3) and polymorphism in
 sibirskite and parasibirskite
;
_database_code_amcsd 0013138
_chemical_compound_source 'Fuka, Okayama Prefecture, Japan'
_chemical_formula_sum 'Ca B (O3 H)'
_cell_length_a 6.722
_cell_length_b 5.437
_cell_length_c 3.555
_cell_angle_alpha 90
_cell_angle_beta 93.00
_cell_angle_gamma 90
_cell_volume 129.748
_exptl_crystal_density_diffrn      2.557
_symmetry_space_group_name_H-M 'P 1 21/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'x,1/2-y,z'
  '-x,1/2+y,-z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
Ca   0.14700   0.25000   0.25200   0.01874
B   0.71600   0.25000   0.28000   0.01140
O-H1   0.52300   0.25000   0.36700   0.01735
O2   0.81900   0.03000   0.24000   0.01735