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#$Date: 2016-02-13 21:28:24 +0200 (Sat, 13 Feb 2016) $
#$Revision: 176429 $
#$URL: svn://www.crystallography.net/cod/cif/1/52/81/1528140.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_1528140
loop_
_publ_author_name
'Toraya, H.'
'Iwai, S.I.'
'Marumo, F.'
'Nishikawa, T.'
'Hirao, M.'
_publ_section_title
;
 The crystal structure of synthetic mica, K Mg2.75 Si3.5 Al0.5 O10 F2
;
_journal_name_full               'Mineralogical Journal (Japan)'
_journal_page_first              210
_journal_page_last               220
_journal_volume                  9
_journal_year                    1978
_chemical_formula_sum            'Al0.5 F2 K Mg2.75 O10 Si3.5'
_chemical_name_systematic        'K Mg2.75 Si3.5 Al0.5 O10 F2'
_space_group_IT_number           12
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 100.07
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   5.292
_cell_length_b                   9.164
_cell_length_c                   10.143
_cell_volume                     484.316
_citation_journal_id_ASTM        MJTOAS
_cod_data_source_file            Toraya_MJTOAS_1978_873.cif
_cod_data_source_block           Al0.5F2K1Mg2.75O10Si3.5
_cod_original_formula_sum        'Al0.5 F2 K1 Mg2.75 O10 Si3.5'
_cod_database_code               1528140
loop_
_symmetry_equiv_pos_as_xyz
x,y,z
-x,y,-z
-x,-y,-z
x,-y,z
x+1/2,y+1/2,z
-x+1/2,y+1/2,-z
-x+1/2,-y+1/2,-z
x+1/2,-y+1/2,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
O1 O-2 0.0375 0 0.1669 1 0.0
Si1 Si+4 0.07558 0.16653 0.22616 0.875 0.0
Mg2 Mg+2 0 0.33205 0.5 0.927 0.0
K1 K+1 0 0.5 0 0.938 0.0
O3 O-2 0.1298 0.1665 0.3891 1 0.0
Al1 Al+3 0.07558 0.16653 0.22616 0.125 0.0
O2 O-2 0.315 0.2408 0.1669 1 0.0
Mg1 Mg+2 0 0 0.5 0.927 0.0
F1 F-1 0.6336 0 0.4008 1 0.0
