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#$Date: 2016-07-07 11:09:50 +0300 (Thu, 07 Jul 2016) $
#$Revision: 184280 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/63/9016381.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_9016381
loop_
_publ_author_name
'Warren, B.'
'Modell, D.'
_publ_section_title
;
 The structure of Anthophyllite H2 Mg7 (Si O3)8
 _cod_database_code 1010935
;
_journal_name_full               'Zeitschrift fur Kristallographie'
_journal_page_first              161
_journal_page_last               179
_journal_volume                  75
_journal_year                    1930
_chemical_formula_sum            'Mg7 O24 Si8'
_chemical_name_mineral           Anthophyllite
_space_group_IT_number           62
_symmetry_space_group_name_Hall  '-P 2ac 2n'
_symmetry_space_group_name_H-M   'P n m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.5
_cell_length_b                   17.89999
_cell_length_c                   5.27
_cell_volume                     1745.160
_database_code_amcsd             0017657
_exptl_crystal_density_diffrn    2.964
_cod_duplicate_entry             1010935
_cod_original_formula_sum        'Mg7 Si8 O24'
_cod_database_code               9016381
loop_
_space_group_symop_operation_xyz
x,y,z
x,1/2-y,z
-x,1/2+y,-z
1/2-x,1/2+y,1/2+z
1/2+x,1/2-y,1/2-z
1/2+x,y,1/2-z
1/2-x,-y,1/2+z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
Mg1 0.13000 0.17000 0.38000
Mg2 0.13000 0.08000 -0.13000
Mg3 0.13000 -0.02000 0.38000
Mg4 0.13000 0.25000 -0.13000
Si1 0.03000 -0.18000 0.29000
Si2 0.03000 -0.08000 -0.21000
Si3 0.22000 -0.08000 0.04000
Si4 0.22000 -0.18000 -0.46000
O1 0.06000 0.07000 0.20000
O2 0.06000 0.18000 -0.30000
O3 0.06000 -0.25000 0.20000
O4 0.06000 0.25000 0.20000
O5 0.06000 0.00000 -0.30000
O6 0.05000 -0.13000 0.05000
O7 0.05000 -0.13000 -0.46000
O8 0.19000 0.18000 0.05000
O9 0.19000 0.07000 -0.44000
O10 0.19000 0.00000 0.05000
O11 0.19000 -0.25000 0.45000
O12 0.19000 0.25000 -0.45000
O13 0.20000 -0.13000 0.30000
O14 0.20000 -0.13000 -0.20000