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#$Date: 2024-05-23 12:45:01 +0300 (Thu, 23 May 2024) $
#$Revision: 292002 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/52/9015226.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_9015226
loop_
_publ_author_name
'Galuskin, E. V.'
'Lazic, B.'
'Armbruster, T.'
'Galuskina, I. O.'
'Pertsev, N. N.'
'Gazeev, V. M.'
'Wlodyka, R.'
'Dulski, M.'
'Dzierzanowski, P.'
'Zadov, A. E.'
'Dubrovinsky, L. S.'
_publ_section_title
;
 Edgrewite Ca9(SiO4)4F2-hydroxyledgrewite Ca9(SiO4)4(OH)2, a new series
 of calcium humite-group minerals from altered xenoliths in the ignimbrite
 of Upper Chegem caldera, Northern Caucasus, Kabardino-Balkaria, Russia
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1998
_journal_page_last               2006
_journal_paper_doi               10.2138/am.2012.4161
_journal_volume                  97
_journal_year                    2012
_chemical_compound_source
'Upper Chegem caldera, Northern Caucasus, Kabardino-Balkaria, Russia'
_chemical_formula_sum            'Ca9 F0.96 O17.04 Si4'
_chemical_name_mineral           Edgrewite
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2xab'
_symmetry_space_group_name_H-M   'P 21/b 1 1'
_cell_angle_alpha                100.598
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   5.0687
_cell_length_b                   11.3579
_cell_length_c                   15.4004
_cell_formula_units_Z            2
_cell_volume                     871.474
_database_code_amcsd             0019557
_exptl_crystal_density_diffrn    2.911
_cod_original_formula_sum        'Ca9 Si4 O17.04 F.96'
_cod_database_code               9015226
loop_
_space_group_symop_operation_xyz
x,y,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
_atom_site_U_iso_or_equiv
Ca1 0.50000 0.00000 0.50000 1.00000 0.00692
Ca2 0.49508 0.94666 0.27370 1.00000 0.00698
Ca3 0.00478 0.13653 0.17283 1.00000 0.00645
Ca4 0.50769 0.25407 0.38901 1.00000 0.00606
Ca5 0.49245 0.87168 0.04256 1.00000 0.00696
Si1 0.07123 0.06835 0.38955 1.00000 0.00430
Si2 0.07549 0.17901 0.83411 1.00000 0.00466
O1 0.75110 0.06609 0.38803 1.00000 0.00740
O2 0.29860 0.43501 0.38809 1.00000 0.00620
O3 0.20280 0.11311 0.30359 1.00000 0.00700
O4 0.20170 0.15466 0.47638 1.00000 0.00730
O5 0.25500 0.32030 0.16362 1.00000 0.00750
O6 0.79500 0.95261 0.16185 1.00000 0.00680
O7 0.70410 0.28081 0.25414 1.00000 0.00730
O8 0.70730 0.23059 0.08118 1.00000 0.00670
O9 0.22850 0.04040 0.04450 0.52000 0.00920
F9 0.26190 0.04590 0.05850 0.48000 0.00920
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0019557
