#------------------------------------------------------------------------------
#$Date: 2024-04-18 17:56:43 +0200 (Thu, 18 Apr 2024) $
#$Revision: 291269 $
#$URL: svn://saulius.grazulis.lt/cod-secondary/cif/9/00/13/9001335.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_9001335
loop_
_publ_author_name
'Oberti, R.'
'Caporuscio, F. A.'
_publ_section_title
;Crystal chemistry of clinopyroxenes from mantle eclogites: A study of the key
 role of the M2 site population by means of crystal-structure refinement
 sample SBB 34, Di62Jd24, diopside - jadeite join
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1141
_journal_page_last               1152
_journal_volume                  76
_journal_year                    1991
_chemical_formula_sum            'Al0.22 Ca0.61 Fe0.2 Mg0.72 Na0.25 O6 Si2'
_chemical_name_mineral           Diopside
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 106.78
_cell_angle_gamma                90
_cell_length_a                   9.662
_cell_length_b                   8.841
_cell_length_c                   5.253
_cell_formula_units_Z            4
_cell_volume                     429.614
_database_code_amcsd             0001365
_exptl_crystal_density_diffrn    3.354
_cod_original_formula_sum        'Mg.72 Al.22 Fe.2 Ca.61 Na.25 Si2 O6'
_cod_database_code               9001335
loop_
_space_group_symop_operation_xyz
x,y,z
1/2+x,1/2+y,z
x,-y,1/2+z
1/2+x,1/2-y,1/2+z
-x,y,1/2-z
1/2-x,1/2+y,1/2-z
-x,-y,-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
Mg1 0.00000 0.90560 0.25000 0.65000 0.00798
Al1 0.00000 0.90560 0.25000 0.22000 0.00798
Fe1 0.00000 0.90560 0.25000 0.13000 0.00798
Ca2 0.00000 0.29730 0.25000 0.61000 0.01216
Na2 0.00000 0.29730 0.25000 0.25000 0.01216
Mg2 0.00000 0.29730 0.25000 0.07000 0.00380
Fe2 0.00000 0.29730 0.25000 0.07000 0.00380
Si 0.28860 0.09240 0.23310 1.00000 0.00621
O1 0.11480 0.08440 0.13950 1.00000 0.01089
O2 0.36210 0.25240 0.31790 1.00000 0.01355
O3 0.35170 0.01600 0.00170 1.00000 0.01001
loop_
_cod_related_entry_id
_cod_related_entry_database
_cod_related_entry_code
1 AMCSD 0001365
