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#$Date: 2015-10-09 20:42:58 +0300 (Fri, 09 Oct 2015) $
#$Revision: 162642 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/53/53/1535330.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1535330
loop_
_publ_author_name
'Takeuchi, Y.'
_publ_section_title
;
 A detailed investigation of the structure of hexagonal Ba Al2 Si2 O8 with
 reference to its alpha-beta inversion
;
_journal_name_full               'Mineralogical Journal (Japan)'
_journal_page_first              311
_journal_page_last               332
_journal_volume                  2
_journal_year                    1958
_chemical_formula_sum            'Al2 Ba O8 Si2'
_chemical_name_systematic        'Ba (Al Si O4)2'
_space_group_IT_number           191
_symmetry_space_group_name_Hall  '-P 6 2'
_symmetry_space_group_name_H-M   'P 6/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            1
_cell_length_a                   5.293
_cell_length_b                   5.293
_cell_length_c                   7.79
_cell_volume                     189.004
_citation_journal_id_ASTM        MJTOAS
_cod_data_source_file            Takeuchi_MJTOAS_1958_554.cif
_cod_data_source_block           Al2Ba1O8Si2
_cod_original_cell_volume        189.0044
_cod_chemical_formula_sum_orig   'Al2 Ba1 O8 Si2'
_cod_database_code               1535330
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
x-y,x,z
-y,x-y,z
-x,-y,z
-x+y,-x,z
y,-x+y,z
-y,-x,-z
x-y,-y,-z
x,x-y,-z
y,x,-z
-x+y,y,-z
-x,-x+y,-z
-x,-y,-z
-x+y,-x,-z
y,-x+y,-z
x,y,-z
x-y,x,-z
-y,x-y,-z
y,x,z
-x+y,y,z
-x,-x+y,z
-y,-x,z
x-y,-y,z
x,x-y,z
loop_
_atom_site_label
_atom_site_type_symbol
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
_atom_site_U_iso_or_equiv
Al1 Al+3 0.3333 0.6667 0.288 0.5 0.0
O2 O-2 0.45 0 0.209 0.5 0.0
Ba1 Ba+2 0 0 0 1 0.0
O1 O-2 0.3333 0.6667 0.5 1 0.0
Si1 Si+4 0.3333 0.6667 0.288 0.5 0.0