data_global
_chemical_name_mineral 'Korshunovskite'
loop_
_publ_author_name
'de Wolff P M'
'Walter-Levy L'
_journal_name_full 'Acta Crystallographica'
_journal_volume 6 
_journal_year 1953
_journal_page_first 40
_journal_page_last 44
_publ_section_title
;
 The crystal structure of Mg2(OH)3(Cl,Br)*4H2O
;
_database_code_amcsd 0009151
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Mg2 (O7 Cl) H11'
_cell_length_a 8.65
_cell_length_b 6.27
_cell_length_c 7.43
_cell_angle_alpha 101.97
_cell_angle_beta 104.0
_cell_angle_gamma 73.18
_cell_volume 370.154
_exptl_crystal_density_diffrn      1.859
_symmetry_space_group_name_H-M 'P -1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Mg1   0.05500   0.40000   0.18800
Mg2   0.05500   0.90000   0.18800
O-HII1   0.14400   0.10000   0.03900
O-HII2   0.14400   0.60000   0.03900
O-HI  -0.04200   0.22000   0.31600
Cl  -0.43800   0.81200   0.18800
WatI  -0.04200   0.72000   0.31600
WatII   0.27800   0.86100   0.39400
WatIII   0.27800   0.36100   0.39400
WatIV  -0.41600   0.31900   0.25000