data_global
_chemical_name_mineral 'Hibonite'
loop_
_publ_author_name
'Bermanec V'
'Holtstam D'
'Sturman D'
'Criddle A J'
'Back M E'
'Scavnicar S'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 34 
_journal_year 1996
_journal_page_first 1287
_journal_page_last 1297
_publ_section_title
;
 Nezilovite, a new member of the magnetoplumbite group, and the crystal
 chemistry of mognetoplumbite and hibonite
;
_database_code_amcsd 0005520
_chemical_formula_sum 'Ca.85 Ce.06 La.03 Nd.01 Mg.53 Al10.66 Fe.3 Si.06 Ti.5 O19'
_cell_length_a 5.613
_cell_length_b 5.613
_cell_length_c 22.285
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 608.042
_exptl_crystal_density_diffrn      3.796
_symmetry_space_group_name_H-M 'P 63/m m c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,1/2-z'
  'x-y,x,1/2+z'
  '-y,-x,z'
  'y,x,-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,1/2-z'
  '-x,-y,1/2+z'
  'x,x-y,z'
  '-x,-x+y,-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,1/2-z'
  'y,-x+y,1/2+z'
  '-x+y,y,z'
  'x-y,-y,-z'
  '-x,-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
Ca   0.66667   0.33333   0.25000   0.85000   0.03546
Ce   0.66667   0.33333   0.25000   0.06000   0.03546
La   0.66667   0.33333   0.25000   0.03000   0.03546
Nd   0.66667   0.33333   0.25000   0.01000   0.03546
Mg   0.66667   0.33333   0.25000   0.05000   0.03546
AlM1   0.00000   0.00000   0.00000   1.00000   0.00633
AlM2   0.00000   0.00000   0.23790   0.50000   0.01393
FeM3   0.33333   0.66667   0.02710   0.15000   0.00887
MgM3   0.33333   0.66667   0.02710   0.24000   0.00887
AlM3   0.33333   0.66667   0.02710   0.61000   0.00887
SiM4   0.66667   0.33333  -0.18890   0.03000   0.01013
TiM4   0.66667   0.33333  -0.18890   0.25000   0.01013
AlM4   0.66667   0.33333  -0.18890   0.72000   0.01013
AlM5   0.16790   0.33580  -0.10710   1.00000   0.00507
O1   0.00000   0.00000   0.14810   1.00000   0.00887
O2   0.33333   0.66667  -0.05650   1.00000   0.01013
O3   0.36200   0.18100   0.75000   1.00000   0.02913
O4   0.15310   0.30630   0.05200   1.00000   0.01267
O5   0.50430  -0.50430   0.35080   1.00000   0.01140