data_global
_chemical_name_mineral 'Liudongshengite'
loop_
_publ_author_name
'Yang H'
'Gibbs R B'
'Schwenk C'
'Xie X'
'Gu X'
'Downs R T'
'Evans S H'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 59 
_journal_year 2021
_journal_page_first 763
_journal_page_last 769
_publ_section_title
;
 Liudongshengite, Zn4Cr2(OH)12(CO3)*3H2O, a new mineral of the hydrotalcite supergroup,
 from the 79 mine, Gila County, Arizona, USA
;
_database_code_amcsd 0020970
_chemical_compound_source '79 mine, Gila County, Arizona, USA'
_chemical_formula_sum '(Zn.542 Cr.43 Mg.028) C.216 O3.146 H2.996'
_cell_length_a 3.1111
_cell_length_b 3.1111
_cell_length_c 22.6816
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 190.122
_exptl_crystal_density_diffrn      2.998
_symmetry_space_group_name_H-M 'R -3 m'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '2/3+x,1/3+y,1/3+z'
  '1/3+x,2/3+y,2/3+z'
  'x,x-y,z'
  '2/3+x,1/3+x-y,1/3+z'
  '1/3+x,2/3+x-y,2/3+z'
  'y,x,-z'
  '2/3+y,1/3+x,1/3-z'
  '1/3+y,2/3+x,2/3-z'
  '-x+y,y,z'
  '2/3-x+y,1/3+y,1/3+z'
  '1/3-x+y,2/3+y,2/3+z'
  '-x,-x+y,-z'
  '2/3-x,1/3-x+y,1/3-z'
  '1/3-x,2/3-x+y,2/3-z'
  '-y,-x,z'
  '2/3-y,1/3-x,1/3+z'
  '1/3-y,2/3-x,2/3+z'
  'x-y,-y,-z'
  '2/3+x-y,1/3-y,1/3-z'
  '1/3+x-y,2/3-y,2/3-z'
  'y,-x+y,-z'
  '2/3+y,1/3-x+y,1/3-z'
  '1/3+y,2/3-x+y,2/3-z'
  '-x+y,-x,z'
  '2/3-x+y,1/3-x,1/3+z'
  '1/3-x+y,2/3-x,2/3+z'
  '-x,-y,-z'
  '2/3-x,1/3-y,1/3-z'
  '1/3-x,2/3-y,2/3-z'
  '-y,x-y,z'
  '2/3-y,1/3+x-y,1/3+z'
  '1/3-y,2/3+x-y,2/3+z'
  'x-y,x,-z'
  '2/3+x-y,1/3+x,1/3-z'
  '1/3+x-y,2/3+x,2/3-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
Zn   0.00000   0.00000   0.00000   0.54200   0.01538
Cr   0.00000   0.00000   0.00000   0.43000   0.01538
Mg   0.00000   0.00000   0.00000   0.02800   0.01538
C   0.33333   0.66667   0.50228   0.10800   0.06630
O1   0.00000   0.00000   0.37790   1.00000   0.02018
H1   0.00000   0.00000   0.41069   1.00000   0.06821
O2   0.10833   0.89167   0.50058   0.10800   0.04423
Wat2   0.10833   0.89167   0.50058   0.08300   0.04423
loop_
_atom_site_aniso_label
_atom_site_aniso_U_11
_atom_site_aniso_U_22
_atom_site_aniso_U_33
_atom_site_aniso_U_12
_atom_site_aniso_U_13
_atom_site_aniso_U_23
Zn 0.00927 0.00927 0.02759 0.00464 0.00000 0.00000
Cr 0.00927 0.00927 0.02759 0.00464 0.00000 0.00000
Mg 0.00927 0.00927 0.02759 0.00464 0.00000 0.00000
O1 0.02004 0.02004 0.02045 0.01002 0.00000 0.00000