#------------------------------------------------------------------------------
#$Date: 2024-05-29 17:00:33 +0300 (Wed, 29 May 2024) $
#$Revision: 292100 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/59/9015910.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_9015910
loop_
_publ_author_name
'Taylor, W.'
'West, J.'
_publ_section_title
;
 The Structure of Norbergite
 _cod_database_code 1011009
;
_journal_name_full               'Zeitschrift fur Kristallographie'
_journal_page_first              461
_journal_page_last               474
_journal_volume                  70
_journal_year                    1929
_chemical_formula_sum            'F Mg3 O5 Si'
_chemical_name_mineral           Norbergite
_space_group_IT_number           62
_symmetry_space_group_name_Hall  '-P 2c 2ab'
_symmetry_space_group_name_H-M   'P b n m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   4.7
_cell_length_b                   10.2
_cell_length_c                   8.72
_cell_formula_units_Z            4
_cell_volume                     418.037
_database_code_amcsd             0017920
_exptl_crystal_density_diffrn    3.178
_cod_original_formula_sum        'O5 F Mg3 Si'
_cod_database_code               9015910
loop_
_space_group_symop_operation_xyz
x,y,z
x,y,1/2-z
-x,-y,1/2+z
1/2+x,1/2-y,1/2+z
1/2-x,1/2+y,1/2-z
1/2-x,1/2+y,z
1/2+x,1/2-y,-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
O1 0.25000 0.29200 0.08300 1.00000
O2 0.25000 0.04200 0.25000 1.00000
O3 -0.25000 0.20800 0.25000 1.00000
F1 -0.25000 -0.04200 0.08300 0.50000
O4 -0.25000 -0.04200 0.08300 0.50000
Mg1 0.00000 -0.36100 0.07800 1.00000
Mg2 0.01400 -0.11100 0.25000 1.00000
Si1 0.38900 -0.27800 0.25000 1.00000
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0017920
