data_1008746
_chemical_name_systematic
;
Aluminium calcium silicate hydroxide (2/3/2.2/3.4)
;
_chemical_name_mineral             'Hibschite'
_chemical_formula_structural       'Al2 Ca3 (Si O4)2.16 (O H)3.36'
_chemical_formula_sum              'H3.36 Al2 Ca3 O12 Si2.16'
_publ_section_title
;
Etude de la substitution du groupement Si O4 par (O H)4 dans les
composes Al2 Ca3 (O H)12 et Al2 Ca3 (Si O4)2.16 (O H)3.36 de type
grenat
;
loop_
_publ_author_name
  'Cohen-Addad, C'
  'Ducros, P'
  'Bertaut, E F'
_journal_name_full                 'Acta Crystallographica (1,1948-23,1967)'
_journal_coden_ASTM                ACCRA9
_journal_volume                    23
_journal_year                      1967
_journal_page_first                220
_journal_page_last                 230
_cell_length_a                     11.94(1)
_cell_length_b                     11.94(1)
_cell_length_c                     11.94(1)
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  90
_cell_volume                       1702.2
_cell_formula_units_Z              8
_symmetry_space_group_name_H-M     'I a -3 d'
_symmetry_Int_Tables_number        230
_symmetry_cell_setting             cubic
loop_
_symmetry_equiv_pos_as_xyz
  'x,y,z'
  '1/2+x,1/2-y,-z'
  '-x,1/2+y,1/2-z'
  '1/2-x,-y,1/2+z'
  'y,z,x'
  '1/2-y,-z,1/2+x'
  '1/2+y,1/2-z,-x'
  '-y,1/2+z,1/2-x'
  'z,x,y'
  '-z,1/2+x,1/2-y'
  '1/2-z,-x,1/2+y'
  '1/2+z,1/2-x,-y'
  '-x,-y,-z'
  '1/2-x,1/2+y,z'
  'x,1/2-y,1/2+z'
  '1/2+x,y,1/2-z'
  '-y,-z,-x'
  '1/2+y,z,1/2-x'
  '1/2-y,1/2+z,x'
  'y,1/2-z,1/2+x'
  '-z,-x,-y'
  'z,1/2-x,1/2+y'
  '1/2+z,x,1/2-y'
  '1/2-z,1/2+x,y'
  '1/4+x,1/4+z,1/4+y'
  '3/4+x,1/4-z,3/4-y'
  '1/4-x,3/4-z,3/4+y'
  '3/4-x,3/4+z,1/4-y'
  '1/4+y,1/4+x,1/4+z'
  '3/4-y,3/4+x,1/4-z'
  '3/4+y,1/4-x,3/4-z'
  '1/4-y,3/4-x,3/4+z'
  '1/4+z,1/4+y,1/4+x'
  '1/4-z,3/4-y,3/4+x'
  '3/4-z,3/4+y,1/4-x'
  '3/4+z,1/4-y,3/4-x'
  '1/4-x,1/4-z,1/4-y'
  '3/4-x,1/4+z,3/4+y'
  '1/4+x,3/4+z,3/4-y'
  '3/4+x,3/4-z,1/4+y'
  '1/4-y,1/4-x,1/4-z'
  '3/4+y,3/4-x,1/4+z'
  '3/4-y,1/4+x,3/4+z'
  '1/4+y,3/4+x,3/4-z'
  '1/4-z,1/4-y,1/4-x'
  '1/4+z,3/4+y,3/4-x'
  '3/4+z,3/4-y,1/4+x'
  '3/4-z,1/4+y,3/4+x'
  '1/2+x,1/2+y,1/2+z'
  'x,-y,1/2-z'
  '1/2-x,y,-z'
  '-x,1/2-y,z'
  '1/2+y,1/2+z,1/2+x'
  '-y,1/2-z,x'
  'y,-z,1/2-x'
  '1/2-y,z,-x'
  '1/2+z,1/2+x,1/2+y'
  '1/2-z,x,-y'
  '-z,1/2-x,y'
  'z,-x,1/2-y'
  '1/2-x,1/2-y,1/2-z'
  '-x,y,1/2+z'
  '1/2+x,-y,z'
  'x,1/2+y,-z'
  '1/2-y,1/2-z,1/2-x'
  'y,1/2+z,-x'
  '-y,z,1/2+x'
  '1/2+y,-z,x'
  '1/2-z,1/2-x,1/2-y'
  '1/2+z,-x,y'
  'z,1/2+x,-y'
  '-z,x,1/2+y'
  '3/4+x,3/4+z,3/4+y'
  '1/4+x,3/4-z,1/4-y'
  '3/4-x,1/4-z,1/4+y'
  '1/4-x,1/4+z,3/4-y'
  '3/4+y,3/4+x,3/4+z'
  '1/4-y,1/4+x,3/4-z'
  '1/4+y,3/4-x,1/4-z'
  '3/4-y,1/4-x,1/4+z'
  '3/4+z,3/4+y,3/4+x'
  '3/4-z,1/4-y,1/4+x'
  '1/4-z,1/4+y,3/4-x'
  '1/4+z,3/4-y,1/4-x'
  '3/4-x,3/4-z,3/4-y'
  '1/4-x,3/4+z,1/4+y'
  '3/4+x,1/4+z,1/4-y'
  '1/4+x,1/4-z,3/4+y'
  '3/4-y,3/4-x,3/4-z'
  '1/4+y,1/4-x,3/4+z'
  '1/4-y,3/4+x,1/4+z'
  '3/4+y,1/4+x,1/4-z'
  '3/4-z,3/4-y,3/4-x'
  '3/4+z,1/4+y,1/4-x'
  '1/4+z,1/4-y,3/4+x'
  '1/4-z,3/4+y,1/4+x'
loop_
_atom_type_symbol
_atom_type_oxidation_number
  Al3+   3.000
  Ca2+   2.000
  Si4+   4.000
  O2-   -2.000
  H1+    1.000
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_symmetry_multiplicity
_atom_site_Wyckoff_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_attached_hydrogens
_atom_site_calc_flag
  Al1   Al3+  16 a 0. 0. 0. 1.  0 d
  Ca1   Ca2+  24 c 0.125 0. 0.25 1.  0 d
  Si1   Si4+  24 d 0.375 0. 0.25 0.72  0 d
  O1    O2-   96 h 0.0380(15) 0.0480(15) 0.6450(15) 1.  0 d
  H1    H1+   96 h 0.110(9) 0.060(9) 0.616(9) 0.28  0 d