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#$Date: 2022-09-27 19:39:49 +0300 (Tue, 27 Sep 2022) $
#$Revision: 278220 $
#$URL: file:///home/coder/svn-repositories/cod/cif/1/00/00/1000016.cif $
#------------------------------------------------------------------------------
#
# This file is available in the Crystallography Open Database (COD),
# http://www.crystallography.net/
#
# All data on this site have been placed in the public domain by the
# contributors.
#
data_1000016
loop_
_publ_author_name
'Thompson, R. M.'
'Downs, R. T.'
_publ_section_title
;
 The crystal structure of diopside at pressure to 10 GPa
 Locality: DeKalb, New York
 Sample: P = 10.16 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              177
_journal_page_last               186
_journal_paper_doi               10.2138/am.2008.2684
_journal_volume                  93
_journal_year                    2008
_chemical_formula_structural     CaMg(Si2O6)
_chemical_formula_sum            'Ca Mg O6 Si2'
_chemical_name_mineral           Diopside
_space_group_crystal_system      monoclinic
_space_group_IT_number           15
_space_group_name_Hall           '-C 2yc'
_space_group_name_H-M_alt        'C 1 2/c 1'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90.00000
_cell_angle_beta                 105.03300
_cell_angle_gamma                90.00000
_cell_length_a                   9.51640
_cell_length_b                   8.64490
_cell_length_c                   5.12460
_diffrn_ambient_pressure         1.016e+07
_exptl_crystal_density_diffrn    3.533
_cod_original_sg_symbol_H-M      C2/c
_cod_database_code               1000016
loop_
_space_group_symop_id
_space_group_symop_operation_xyz
1 x,y,z
2 -x,y,-z+1/2
3 -x,-y,-z
4 x,-y,z+1/2
5 x+1/2,y+1/2,z
6 -x+1/2,y+1/2,-z+1/2
7 -x+1/2,-y+1/2,-z
8 x+1/2,-y+1/2,z+1/2
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
MgM1 0.00000 0.91075 0.25000 0.00557
CaM2 0.00000 0.30587 0.25000 0.00849
Si 0.28610 0.09554 0.22718 0.00595
O1 0.11538 0.08832 0.14178 0.00722
O2 0.35921 0.25714 0.32226 0.00861
O3 0.35409 0.02340 0.98725 0.00849