#------------------------------------------------------------------------------
#$Date: 2024-04-18 18:56:43 +0300 (Thu, 18 Apr 2024) $
#$Revision: 291269 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/00/08/9000819.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/. The original data for this entry
# were provided the American Mineralogist Crystal Structure Database,
# http://rruff.geo.arizona.edu/AMS/amcsd.php
#
# The file may be used within the scientific community so long as
# proper attribution is given to the journal article from which the
# data were obtained.
#
data_9000819
loop_
_publ_author_name
'Hazen, R. M.'
'Finger, L. W.'
'Velde, D.'
_publ_section_title
;
 Crystal structure of a silica- and alkali-rich trioctahedral mica
;
_journal_name_full               'American Mineralogist'
_journal_page_first              586
_journal_page_last               591
_journal_volume                  66
_journal_year                    1981
_chemical_formula_sum
'F2 Fe0.688 K Li0.225 Mg2.664 Na0.111 O10 Si3.312'
_chemical_name_mineral           Mica
_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
_cell_angle_gamma                90
_cell_length_a                   5.329
_cell_length_b                   9.230
_cell_length_c                   10.219
_cell_formula_units_Z            2
_cell_volume                     495.002
_database_code_amcsd             0000836
_exptl_crystal_density_diffrn    2.935
_cod_original_formula_sum
'(Si3.312 Fe.688) (Mg2.664 Li.225 Na.111) K O10 F2'
_cod_database_code               9000819
loop_
_space_group_symop_operation_xyz
x,y,z
1/2+x,1/2+y,z
x,-y,z
1/2+x,1/2-y,z
-x,y,-z
1/2-x,1/2+y,-z
-x,-y,-z
1/2-x,1/2-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Si 0.57490 0.16670 0.22550 0.82800
Fe 0.57490 0.16670 0.22550 0.17200
Mg1 0.00000 0.50000 0.50000 0.88800
Li1 0.00000 0.50000 0.50000 0.07500
Na1 0.00000 0.50000 0.50000 0.03700
Mg2 0.00000 0.83370 0.50000 0.88800
Li2 0.00000 0.83370 0.50000 0.07500
Na2 0.00000 0.83370 0.50000 0.03700
K 0.00000 0.00000 0.00000 1.00000
O1 0.81980 0.23550 0.16720 1.00000
O2 0.52640 0.00000 0.16690 1.00000
O3 0.62980 0.16700 0.39010 1.00000
F 0.13360 0.00000 0.39920 1.00000
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0000836
