#------------------------------------------------------------------------------
#$Date: 2024-05-29 17:00:33 +0300 (Wed, 29 May 2024) $
#$Revision: 292100 $
#$URL: file:///home/coder/svn-repositories/cod/cif/9/01/77/9017769.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_9017769
loop_
_publ_author_name
'Sharygin, V. V.'
'Doroshkevich, A. G.'
'Seryotkin, Y. V.'
'Karmanov, N. S.'
'Belogub, E. V.'
'Moroz, T. N.'
'Nigmatulina, E. N.'
'Yelisseyev, A. P.'
'Vedenyapin, V. N.'
'Kupriyanov, I. N.'
_publ_section_title
;
 Rippite, K2(Nb,Ti)2(Si4O12)O(O,F), a new K-Nb-cyclosilicate from Chuktukon
 Carbonatite Massif, Chadobets Upland, Krasnoyarsk Territory, Russia
;
_journal_name_full               Minerals
_journal_page_last               1102
_journal_volume                  10
_journal_year                    2020
_chemical_compound_source        'Chuktukon Carbonatite Massif, Russia'
_chemical_formula_sum            'K Nb0.96 O7 Si2 Ti0.02 Zr0.01'
_chemical_name_mineral           Rippite
_space_group_IT_number           100
_space_group_name_Hall           'P 4 -2ab'
_space_group_name_H-M_alt        'P 4 b m'
_symmetry_space_group_name_H-M   'P 4 b m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   8.73885
_cell_length_b                   8.73885
_cell_length_c                   8.1277
_cell_formula_units_Z            4
_cell_volume                     620.692
_database_code_amcsd             0020927
_exptl_crystal_density_diffrn    3.192
_cod_data_source_file            inputs/fixed/downloads/18/18733.cif
_cod_data_source_block           18733
_cod_original_formula_sum        'Nb.96 Ti.02 Zr.01 K Si2 O7'
_cod_database_code               9017769
loop_
_space_group_symop_operation_xyz
x,y,z
1/2-y,1/2-x,z
-y,x,z
1/2+x,1/2-y,z
-x,-y,z
1/2+y,1/2+x,z
y,-x,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
_atom_site_U_iso_or_equiv
Nb1 0.00000 0.00000 0.23217 0.96000 0.02550
Ti1 0.00000 0.00000 0.23217 0.02000 0.02550
Zr1 0.00000 0.00000 0.23217 0.01000 0.02550
Nb2 0.00000 0.00000 0.73373 0.96000 0.02370
Ti2 0.00000 0.00000 0.73373 0.02000 0.02370
Zr2 0.00000 0.00000 0.73373 0.01000 0.02370
K 0.32254 0.82254 0.00030 1.00000 0.02160
Si1 0.12425 0.62425 0.30800 1.00000 0.01390
Si2 0.12401 0.62401 0.69906 1.00000 0.00760
O1 0.42400 0.28950 0.23610 1.00000 0.01820
O2 0.42290 0.28770 0.76800 1.00000 0.01580
O3 0.00000 0.00000 -0.00200 1.00000 0.02000
O4 0.00000 0.00000 0.49430 1.00000 0.02290
O5 0.12040 0.62040 0.49740 1.00000 0.02030
O6 0.50000 0.00000 0.23560 1.00000 0.01560
O7 0.50000 0.00000 0.76790 1.00000 0.01380
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0020927
