#------------------------------------------------------------------------------
#$Date: 2023-05-10 19:44:19 +0200 (Wed 10 de May de 2023) $
#$Revision: 283658 $
#$URL: svn://www.crystallography.net/cod/cif/9/01/63/9016303.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_9016303
loop_
_publ_author_name
'Sanchez, M.'
'Garcia-Romero E'
'Suarez, M.'
'Silva, I.'
'Fuentes-Montero L'
'Martinez-Criado G'
_publ_section_title
;
 Variability in sepiolite: Diffraction studies
 Note: Sample GRA225
 Note: T = 225 C
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1443
_journal_page_last               1454
_journal_paper_doi               10.2138/am.2011.3761
_journal_volume                  96
_journal_year                    2011
_chemical_compound_source        'Grant County, New Mexico, USA'
_chemical_formula_sum            'H6 Mg3.864 O19 Si6'
_chemical_name_mineral           Sepiolite
_space_group_IT_number           52
_symmetry_space_group_name_Hall  '-P 2ab 2n'
_symmetry_space_group_name_H-M   'P n c n'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.3317
_cell_length_b                   27.049
_cell_length_c                   5.2694
_cell_volume                     1900.194
_database_code_amcsd             0018531
_exptl_crystal_density_diffrn    2.001
_cod_original_formula_sum        'Si6 Mg3.864 O19 H6'
_cod_database_code               9016303
loop_
_space_group_symop_operation_xyz
x,y,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,1/2+z
-x,y,1/2-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
_atom_site_type_symbol
_atom_site_attached_hydrogens
Si1 0.19900 0.02750 0.58600 1.00000 0.01710 Si 0
Si2 0.20770 0.14050 0.56900 1.00000 0.01710 Si 0
Si3 0.21000 0.19570 0.06800 1.00000 0.01710 Si 0
Mg1 0.00000 0.03610 0.25000 0.96600 0.01836 Mg 0
Mg2 0.00000 0.08800 0.75000 0.96600 0.01836 Mg 0
Mg3 0.00000 0.14740 0.25000 0.96600 0.01836 Mg 0
Mg4 0.00000 0.19980 0.75000 0.96600 0.01836 Mg 0
O9 0.25000 0.25000 0.09200 1.00000 0.01292 O 0
O1 0.09010 0.02590 0.59900 1.00000 0.01292 O 0
O3 0.08030 0.14480 0.58600 1.00000 0.01292 O 0
O4 0.07450 0.19720 0.05200 1.00000 0.01292 O 0
O5 0.25060 0.00310 0.32900 1.00000 0.01292 O 0
O6 0.24980 0.08780 0.59800 1.00000 0.01292 O 0
O7 0.28000 0.16590 0.31600 1.00000 0.01292 O 0
O8 0.26990 0.16800 0.80800 1.00000 0.01292 O 0
O-H2 0.07440 0.08610 0.07900 1.00000 0.01292 O 1
Wat10 0.08590 0.25590 0.55700 1.00000 0.01292 O 2
loop_
_cod_changelog_entry_id
_cod_changelog_entry_author
_cod_changelog_entry_date
_cod_changelog_entry_text
1
;cod-tools version 3.8.0
Id: cif_guess_AMCSD_atom_types 9574 2023-05-10 09:00:05Z saulius
;
2023-05-10T18:56:55+03:00
;Derived atom types and hydrogen counts
from atom names that follow the AMCSD naming convention
(Wat == water, O-H == hydroxyl).
;
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0018531
