#------------------------------------------------------------------------------
#$Date: 2024-05-02 12:48:35 +0200 (Thu 02 de May de 2024) $
#$Revision: 291455 $
#$URL: svn://www.crystallography.net/cod/cif/9/00/80/9008070.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_9008070
loop_
_publ_author_name
'Frueh, A. J.'
'Czamanske, G. K.'
'Knight, C.'
_publ_section_title
;
 The crystallography of eucairite, CuAgSe
 Sample: tetragonal subcell
;
_journal_name_full               'Zeitschrift fur Kristallographie'
_journal_page_first              389
_journal_page_last               396
_journal_paper_doi               10.1524/zkri.1957.108.5-6.389
_journal_volume                  108
_journal_year                    1957
_chemical_compound_source        'Skrikerum, Sweden'
_chemical_formula_sum            'Ag Cu Se'
_chemical_name_mineral           Eucairite
_space_group_IT_number           129
_symmetry_space_group_name_Hall  '-P 4a 2a'
_symmetry_space_group_name_H-M   'P 4/n m m :2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   4.083
_cell_length_b                   4.083
_cell_length_c                   6.31
_cell_formula_units_Z            2
_cell_volume                     105.193
_database_code_amcsd             0010579
_exptl_crystal_density_diffrn    7.905
_cod_original_sg_symbol_H-M      'P 4/n m m'
_cod_original_formula_sum        'Cu Ag Se'
_cod_database_code               9008070
loop_
_space_group_symop_operation_xyz
x,y,z
1/2-y,1/2-x,z
1/2+y,1/2+x,-z
1/2+y,-x,-z
1/2-y,x,z
x,1/2-y,z
-x,1/2+y,-z
1/2+x,1/2+y,-z
1/2-x,1/2-y,z
y,x,z
-y,-x,-z
-y,1/2+x,-z
y,1/2-x,z
1/2-x,y,z
1/2+x,-y,-z
-x,-y,-z
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_occupancy
Cu 0.25000 0.75000 0.10500 0.50000
Ag 0.25000 0.25000 0.44900 1.00000
Se 0.25000 0.25000 0.87300 1.00000
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0010579
