data_global
_chemical_name_mineral 'Quintinite'
loop_
_publ_author_name
'Arakcheeva A V'
'Pushcharovsky D Y'
'Rastsvetaeva R K'
'Atencio D'
'Lubman G U'
_journal_name_full 'Crystallography Reports'
_journal_volume 41 
_journal_year 1996
_journal_page_first 972
_journal_page_last 981
_publ_section_title
;
 Crystal structure and comparative crystal chemistry of Al2Mg4(OH)12(CO3)*3H2O,
 a new mineral from the hydrotalcite-manasseite group
 Note polytype 2H
;
_database_code_amcsd 0012351
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'Mg2 Al O9 C.5 H9'
_cell_length_a 5.283
_cell_length_b 5.283
_cell_length_c 15.150
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 366.188
_exptl_crystal_density_diffrn      2.128
_symmetry_space_group_name_H-M 'P -6 2 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,z'
  '-x+y,-x,-z'
  'y,x,-z'
  '-y,x-y,z'
  'x-y,-y,z'
  'x,y,-z'
  '-x,-x+y,-z'
  '-x+y,-x,z'
  'y,x,z'
  '-y,x-y,-z'
  'x-y,-y,-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Mg   0.33333   0.66667   0.24300   1.00000   0.02280
Al   0.00000   0.00000   0.25900   1.00000   0.03293
O1   0.00000   0.65100   0.32500   1.00000   0.03673
C   0.00000   0.00000   0.02100   0.50000   0.07979
O2   0.31800   0.00000   0.19000   1.00000   0.03420
O3   0.24400   0.00000   0.00000   1.00000   0.05446
Wat   0.59800   0.00000   0.50000   1.00000   0.08232
H1   0.35000   0.35000   0.39800   1.00000   0.03800
H2   0.00000   0.36000   0.12500   1.00000   0.03800