LMucko/crystallography-open-database huggingface dataset:
Elastic behavior, phase transition, and pressure induced structural evolution of analcime Sample: P = 2.12 GPa
Gatta, G. D.; Nestola, F.; Ballaran, T. B.; American Mineralogist 91 (2006) 568–578; doi:10.2138/am.2006.1994

data_9004013
_publ_section_title
;
 Elastic behavior, phase transition, and pressure induced
 structural evolution of analcime
 Sample: P = 2.12 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              568
_journal_page_last               578
_journal_paper_doi               10.2138/am.2006.1994
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source        'Su Marralzu, Sardinia, Italy'
_chemical_formula_sum            'Al1.806 H4 Na1.71 O14 Si4.194'
_chemical_name_mineral           Analcime
_space_group_IT_number           2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                89.691
_cell_angle_beta                 88.152
_cell_angle_gamma                90.034
_cell_formula_units_Z            8
_cell_length_a                   13.4464
_cell_length_b                   13.3657
_cell_length_c                   13.3449
_cell_volume                     2397.070
_database_code_amcsd             0004137
_diffrn_ambient_pressure         2.12e+06
_exptl_crystal_density_diffrn    2.404
_cod_original_formula_sum        'Na1.71 (Si4.194 Al1.806) O14 H4'
_cod_database_code               9004013
Elastic behavior, phase transition, and pressure induced structural evolution of analcime Sample: P = 5.04 GPa
Gatta, G. D.; Nestola, F.; Ballaran, T. B.; American Mineralogist 91 (2006) 568–578; doi:10.2138/am.2006.1994

data_9004014
_publ_section_title
;
 Elastic behavior, phase transition, and pressure induced
 structural evolution of analcime
 Sample: P = 5.04 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              568
_journal_page_last               578
_journal_paper_doi               10.2138/am.2006.1994
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source        'Su Marralzu, Sardinia, Italy'
_chemical_formula_sum            'Al1.806 H4 Na1.71 O14 Si4.194'
_chemical_name_mineral           Analcime
_space_group_IT_number           2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                90.178
_cell_angle_beta                 86.849
_cell_angle_gamma                88.601
_cell_formula_units_Z            8
_cell_length_a                   13.1605
_cell_length_b                   13.0149
_cell_length_c                   13.0335
_cell_volume                     2228.350
_database_code_amcsd             0004138
_diffrn_ambient_pressure         5.04e+06
_exptl_crystal_density_diffrn    2.586
_cod_original_formula_sum        'Na1.71 (Si4.194 Al1.806) O14 H4'
_cod_database_code               9004014
Poppiite, the V3+ end-member of the pumpellyite group: Description and crystal structure Locality: Gambatesa mine, val Graveglia, Genova, Northern Italy
Brigatti, M. F.; Caprilli, E.; Marchesini, M.; American Mineralogist 91 (2006) 584–588; doi:10.2138/am.2006.2033

data_9004015
_publ_section_title
;Poppiite, the V3+ end-member of the pumpellyite group: Description and
 crystal structure Locality: Gambatesa mine, val Graveglia, Genova, Northern
 Italy
;
_journal_name_full               'American Mineralogist'
_journal_page_first              584
_journal_page_last               588
_journal_paper_doi               10.2138/am.2006.2033
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source
'Gambatesa mine, val Graveglia, Genova, Northern Italy'
_chemical_formula_sum
'Al0.43 Ca1.92 Cu0.01 Fe0.26 H4 Mg0.2 Mn0.15 Na0.08 O14 Si2.91 Ti0.02 V2.04'
_chemical_name_mineral           Poppiite
_space_group_IT_number           12
_symmetry_space_group_name_Hall  '-C 2y'
_symmetry_space_group_name_H-M   'C 1 2/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 97.328
_cell_angle_gamma                90
_cell_length_a                   19.2889
_cell_length_b                   6.0444
_cell_length_c                   8.8783
_cell_formula_units_Z            4
_cell_volume                     1026.665
_database_code_amcsd             0004139
_exptl_crystal_density_diffrn    3.450
_cod_original_formula_sum
'(Ca1.92 Na.08) V2.04 Fe.26 Mg.2 Mn.15 Al.43 Cu.01 Ti.02 Si2.91 O14 H4'
_cod_database_code               9004015
Influence of dehydration kinetics on T-O-T bridge breaking in zeolites with framework type STI: The case of stellerite Sample: T = 302 K Note: occupancies invented to match formula
Arletti, R.; Mazzucato, E.; Vezzalini, G.; American Mineralogist 91 (2006) 628–634; doi:10.2138/am.2006.1966

data_9004016
_publ_section_title
;
 Influence of dehydration kinetics on T-O-T bridge breaking
 in zeolites with framework type STI: The case of stellerite
 Sample: T = 302 K
 Note: occupancies invented to match formula
;
_journal_name_full               'American Mineralogist'
_journal_page_first              628
_journal_page_last               634
_journal_paper_doi               10.2138/am.2006.1966
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source        'Seremida, Sardinia, Italy'
_chemical_formula_sum            'Al1.98 Ca0.78 H36 K0.01 Na0.1 O25.24 Si7.92'
_chemical_name_mineral           Stellerite
_space_group_IT_number           69
_symmetry_space_group_name_Hall  '-F 2 2'
_symmetry_space_group_name_H-M   'F m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   13.5947
_cell_length_b                   18.1823
_cell_length_c                   17.8335
_cell_volume                     4408.136
_database_code_amcsd             0004140
_diffrn_ambient_temperature      302
_exptl_crystal_density_diffrn    2.260
_cod_original_formula_sum        'Ca.78 Na.1 K.01 Si7.92 Al1.98 O25.24 H36'
_cod_database_code               9004016
Influence of dehydration kinetics on T-O-T bridge breaking in zeolites with framework type STI: The case of stellerite Sample: T = 503 K Note: occupancies invented to match formula
Arletti, R.; Mazzucato, E.; Vezzalini, G.; American Mineralogist 91 (2006) 628–634; doi:10.2138/am.2006.1966

data_9004017
_publ_section_title
;
 Influence of dehydration kinetics on T-O-T bridge breaking
 in zeolites with framework type STI: The case of stellerite
 Sample: T = 503 K
 Note: occupancies invented to match formula
;
_journal_name_full               'American Mineralogist'
_journal_page_first              628
_journal_page_last               634
_journal_paper_doi               10.2138/am.2006.1966
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source        'Seremida, Sardinia, Italy'
_chemical_formula_sum            'Al3.96 Ca1.46 H6.796 Na0.19 O37.97 Si15.84'
_chemical_name_mineral           Stellerite
_space_group_IT_number           63
_symmetry_space_group_name_Hall  '-A 2a 2a'
_symmetry_space_group_name_H-M   'A m m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.6629
_cell_length_b                   17.6064
_cell_length_c                   17.3629
_cell_volume                     4176.723
_database_code_amcsd             0004141
_diffrn_ambient_temperature      503
_exptl_crystal_density_diffrn    1.954
_cod_original_formula_sum        'Ca1.46 Na.19 Si15.84 Al3.96 O37.97 H6.796'
_cod_database_code               9004017
Influence of dehydration kinetics on T-O-T bridge breaking in zeolites with framework type STI: The case of stellerite Sample: T = 740 K Note: occupancies invented to match formula
Arletti, R.; Mazzucato, E.; Vezzalini, G.; American Mineralogist 91 (2006) 628–634; doi:10.2138/am.2006.1966

data_9004018
_publ_section_title
;
 Influence of dehydration kinetics on T-O-T bridge breaking
 in zeolites with framework type STI: The case of stellerite
 Sample: T = 740 K
 Note: occupancies invented to match formula
;
_journal_name_full               'American Mineralogist'
_journal_page_first              628
_journal_page_last               634
_journal_paper_doi               10.2138/am.2006.1966
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source        'Seremida, Sardinia, Italy'
_chemical_formula_sum            'Al3.56 Ca1.14 H0.88 Na0.14 O38.13 Si15.84'
_chemical_name_mineral           Stellerite
_space_group_IT_number           63
_symmetry_space_group_name_Hall  '-A 2a 2a'
_symmetry_space_group_name_H-M   'A m m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.5426
_cell_length_b                   17.557
_cell_length_c                   17.102
_cell_volume                     4066.299
_database_code_amcsd             0004142
_diffrn_ambient_temperature      740
_exptl_crystal_density_diffrn    1.961
_cod_original_cell_volume        4066.298
_cod_original_formula_sum        'Ca1.14 Na.14 Si15.84 Al3.56 O38.13 H.88'
_cod_database_code               9004018
Synthetic Ag-rich tourmaline: Structure and chemistry Note: Y(B) adjusted to satisfy symmetry constraint
London, D.; Ertl, A.; Hughes, J. M.; Morgan VI G B; Fritz, E. A.; Harms, B. S.; American Mineralogist 91 (2006) 680–684; doi:10.2138/am.2006.1959

data_9004019
_publ_section_title
;
 Synthetic Ag-rich tourmaline: Structure and chemistry
 Note: Y(B) adjusted to satisfy symmetry constraint
;
_journal_name_full               'American Mineralogist'
_journal_page_first              680
_journal_page_last               684
_journal_paper_doi               10.2138/am.2006.1959
_journal_volume                  91
_journal_year                    2006
_chemical_formula_structural     Na.58Ag.18Mg2.12Al6.98B3Si5.90O27.53OH3F.47
_chemical_formula_sum
'Ag0.18 Al6.981 B3 F0.47 H6.53 Mg2.121 Na0.58 O30.53 Si5.898'
_space_group_IT_number           160
_symmetry_space_group_name_Hall  'R 3 -2"'
_symmetry_space_group_name_H-M   'R 3 m :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   15.8995
_cell_length_b                   15.8995
_cell_length_c                   7.1577
_cell_formula_units_Z            3
_cell_volume                     1567.007
_database_code_amcsd             0004143
_exptl_crystal_density_diffrn    3.099
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
'Na.58 Ag.18 Al6.981 Mg2.121 Si5.898 B3 O30.53 F.47 H6.53'
_cod_database_code               9004019
_amcsd_formula_title             Na.58Ag.18Mg2.12Al6.98B3Si5.90O27.53OH3F.47
Single-crystal diffraction and transmission electron microscopy studies of "silicified" pyrochlore from Narssarssk, Julianehaab district, Greenland Sample: 396a
Bonazzi, P.; Bindi, L.; Zoppi, M.; Capitani, G. C.; Olmi, F.; American Mineralogist 91 (2006) 794–801; doi:10.2138/am.2006.1777

data_9004020
_publ_section_title
;
 Single-crystal diffraction and transmission electron microscopy studies
 of "silicified" pyrochlore from Narssarssk, Julianehaab district, Greenland
 Sample: 396a
;
_journal_name_full               'American Mineralogist'
_journal_page_first              794
_journal_page_last               801
_journal_paper_doi               10.2138/am.2006.1777
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source        'Narssarssk, Julianehaab district, Greenland'
_chemical_formula_sum
;Ca0.73 Ce0.03 F0.62 Fe0.03 H1.352 K0.02 La0.01 Mn0.04 Na0.37 Nb1.72 Nd0.01
 O6.38 Pb0.01 Si0.07 Sr0.07 Ta0.02 Ti0.16 U0.02
;
_chemical_name_mineral           Pyrochlore
_space_group_IT_number           227
_symmetry_space_group_name_Hall  '-F 4vw 2vw 3'
_symmetry_space_group_name_H-M   'F d -3 m :2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.4200
_cell_length_b                   10.4200
_cell_length_c                   10.4200
_cell_volume                     1131.366
_database_code_amcsd             0004144
_exptl_crystal_density_diffrn    4.118
_cod_original_sg_symbol_H-M      'F d -3 m'
_cod_original_formula_sum
;Na.37 K.02 Ca.73 Sr.07 Mn.04 Pb.01 La.01 Ce.03 Nd.01 U.02 (Nb1.72 Ta.02 Ti.16
 Si.07 Fe.03) O6.38 F.62 H1.352
;
_cod_database_code               9004020
Single-crystal diffraction and transmission electron microscopy studies of "silicified" pyrochlore from Narssarssk, Julianehaab district, Greenland Sample: 170a
Bonazzi, P.; Bindi, L.; Zoppi, M.; Capitani, G. C.; Olmi, F.; American Mineralogist 91 (2006) 794–801; doi:10.2138/am.2006.1777

data_9004021
_publ_section_title
;
 Single-crystal diffraction and transmission electron microscopy studies
 of "silicified" pyrochlore from Narssarssk, Julianehaab district, Greenland
 Sample: 170a
;
_journal_name_full               'American Mineralogist'
_journal_page_first              794
_journal_page_last               801
_journal_paper_doi               10.2138/am.2006.1777
_journal_volume                  91
_journal_year                    2006
_chemical_compound_source        'Narssarssk, Julianehaab district, Greenland'
_chemical_formula_sum
;Ca0.72 Ce0.04 F0.46 Fe0.08 H1.908 K0.05 La0.01 Mn0.04 Na0.18 Nb1.48 Nd0.01
 O6.54 Pb0.01 Si0.24 Sr0.08 Ta0.04 Ti0.16 U0.02
;
_chemical_name_mineral           Pyrochlore
_space_group_IT_number           227
_symmetry_space_group_name_Hall  '-F 4vw 2vw 3'
_symmetry_space_group_name_H-M   'F d -3 m :2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   10.3738
_cell_length_b                   10.3738
_cell_length_c                   10.3738
_cell_volume                     1116.384
_database_code_amcsd             0004145
_exptl_crystal_density_diffrn    4.026
_cod_original_sg_symbol_H-M      'F d -3 m'
_cod_original_formula_sum
;Na.18 K.05 Ca.72 Sr.08 Mn.04 Pb.01 La.01 Ce.04 Nd.01 U.02 (Nb1.48 Ta.04 Ti.16
 Si.24 Fe.08) O6.54 F.46 H1.908
;
_cod_database_code               9004021
Compressibility of synthetic potassium-rich clinopyroxene: In situ high-pressure single-crystal X-ray study Sample: 939-1, in air
Bindi, L.; Downs, R. T.; Harlow, G. E.; Safonov, O. G.; Litvin, Y. A.; Perchuk, L. L.; Uchida, H.; Menchetti, S.; American Mineralogist 91 (2006) 802–808; doi:10.2138/am.2006.2031

data_9004022
_publ_section_title
;
 Compressibility of synthetic potassium-rich clinopyroxene:
 In situ high-pressure single-crystal X-ray study
 Sample: 939-1, in air
;
_journal_name_full               'American Mineralogist'
_journal_page_first              802
_journal_page_last               808
_journal_paper_doi               10.2138/am.2006.2031
_journal_volume                  91
_journal_year                    2006
_chemical_formula_sum            'Al0.19 Ca0.88 K0.12 Mg0.83 O6 Si1.98'
_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                 105.990
_cell_angle_gamma                90
_cell_length_a                   9.6912
_cell_length_b                   8.8986
_cell_length_c                   5.2531
_cell_formula_units_Z            4
_cell_volume                     435.490
_database_code_amcsd             0004146
_exptl_crystal_density_diffrn    3.308
_cod_original_formula_sum        '(Ca.88 K.12) Mg.83 Al.19 Si1.98 O6'
_cod_database_code               9004022
Compressibility of synthetic potassium-rich clinopyroxene: In situ high-pressure single-crystal X-ray study Sample: 939-1, in air
Bindi L; Downs R T; Harlow G E; Safonov O G; Litvin Y A; Perchuk L L; Uchida H; Menchetti S; American Mineralogist 91 (2006) 802–808; doi:10.2138/am.2006.2031

data_9004023
_publ_section_title
;
 Compressibility of synthetic potassium-rich clinopyroxene:
 In situ high-pressure single-crystal X-ray study
 Sample: 939-1, in air
;
_journal_name_full               'American Mineralogist'
_journal_page_first              802
_journal_page_last               808
_journal_paper_doi               10.2138/am.2006.2031
_journal_volume                  91
_journal_year                    2006
_chemical_formula_sum            'Al0.19 Ca0.88 K0.12 Mg0.83 O6 Si1.98'
_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                 105.990
_cell_angle_gamma                90
_cell_length_a                   9.6912
_cell_length_b                   8.8986
_cell_length_c                   5.2531
_cell_formula_units_Z            4
_cell_volume                     435.490
_database_code_amcsd             0004147
_diffrn_ambient_pressure         0
_exptl_crystal_density_diffrn    3.308
_cod_original_formula_sum        '(Ca.88 K.12) Mg.83 Al.19 Si1.98 O6'
_cod_database_code               9004023
Compressibility of synthetic potassium-rich clinopyroxene: In situ high-pressure single-crystal X-ray study Sample: 939-1, P = .46 GPa
Bindi, L.; Downs, R. T.; Harlow, G. E.; Safonov, O. G.; Litvin, Y. A.; Perchuk, L. L.; Uchida, H.; Menchetti, S.; American Mineralogist 91 (2006) 802–808; doi:10.2138/am.2006.2031

data_9004024
_publ_section_title
;
 Compressibility of synthetic potassium-rich clinopyroxene:
 In situ high-pressure single-crystal X-ray study
 Sample: 939-1, P = .46 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              802
_journal_page_last               808
_journal_paper_doi               10.2138/am.2006.2031
_journal_volume                  91
_journal_year                    2006
_chemical_formula_sum            'Al0.19 Ca0.88 K0.12 Mg0.83 O6 Si1.98'
_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                 105.951
_cell_angle_gamma                90
_cell_length_a                   9.6828
_cell_length_b                   8.8880
_cell_length_c                   5.2482
_cell_formula_units_Z            4
_cell_volume                     434.274
_database_code_amcsd             0004148
_diffrn_ambient_pressure         4.6e+05
_exptl_crystal_density_diffrn    3.317
_cod_original_cell_volume        434.273
_cod_original_formula_sum        '(Ca.88 K.12) Mg.83 Al.19 Si1.98 O6'
_cod_database_code               9004024
Compressibility of synthetic potassium-rich clinopyroxene: In situ high-pressure single-crystal X-ray study Sample: 939-1, P = 2.45 GPa
Bindi, L.; Downs, R. T.; Harlow, G. E.; Safonov, O. G.; Litvin, Y. A.; Perchuk, L. L.; Uchida, H.; Menchetti, S.; American Mineralogist 91 (2006) 802–808; doi:10.2138/am.2006.2031

data_9004025
_publ_section_title
;
 Compressibility of synthetic potassium-rich clinopyroxene:
 In situ high-pressure single-crystal X-ray study
 Sample: 939-1, P = 2.45 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              802
_journal_page_last               808
_journal_paper_doi               10.2138/am.2006.2031
_journal_volume                  91
_journal_year                    2006
_chemical_formula_sum            'Al0.19 Ca0.88 K0.12 Mg0.83 O6 Si1.98'
_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                 105.746
_cell_angle_gamma                90
_cell_length_a                   9.6313
_cell_length_b                   8.8327
_cell_length_c                   5.2212
_cell_formula_units_Z            4
_cell_volume                     427.502
_database_code_amcsd             0004149
_diffrn_ambient_pressure         2.45e+06
_exptl_crystal_density_diffrn    3.369
_cod_original_formula_sum        '(Ca.88 K.12) Mg.83 Al.19 Si1.98 O6'
_cod_database_code               9004025
Compressibility of synthetic potassium-rich clinopyroxene: In situ high-pressure single-crystal X-ray study Sample: 939-1, P = 5.36 GPa
Bindi, L.; Downs, R. T.; Harlow, G. E.; Safonov, O. G.; Litvin, Y. A.; Perchuk, L. L.; Uchida, H.; Menchetti, S.; American Mineralogist 91 (2006) 802–808; doi:10.2138/am.2006.2031

data_9004026
_publ_section_title
;
 Compressibility of synthetic potassium-rich clinopyroxene:
 In situ high-pressure single-crystal X-ray study
 Sample: 939-1, P = 5.36 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              802
_journal_page_last               808
_journal_paper_doi               10.2138/am.2006.2031
_journal_volume                  91
_journal_year                    2006
_chemical_formula_sum            'Al0.19 Ca0.88 K0.12 Mg0.83 O6 Si1.98'
_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                 105.520
_cell_angle_gamma                90
_cell_length_a                   9.5674
_cell_length_b                   8.7596
_cell_length_c                   5.1863
_cell_formula_units_Z            4
_cell_volume                     418.798
_database_code_amcsd             0004150
_diffrn_ambient_pressure         5.36e+06
_exptl_crystal_density_diffrn    3.440
_cod_original_formula_sum        '(Ca.88 K.12) Mg.83 Al.19 Si1.98 O6'
_cod_database_code               9004026
Compressibility of synthetic potassium-rich clinopyroxene: In situ high-pressure single-crystal X-ray study Sample: 939-1, P = 8.11 GPa
Bindi, L.; Downs, R. T.; Harlow, G. E.; Safonov, O. G.; Litvin, Y. A.; Perchuk, L. L.; Uchida, H.; Menchetti, S.; American Mineralogist 91 (2006) 802–808; doi:10.2138/am.2006.2031

data_9004027
_publ_section_title
;
 Compressibility of synthetic potassium-rich clinopyroxene:
 In situ high-pressure single-crystal X-ray study
 Sample: 939-1, P = 8.11 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              802
_journal_page_last               808
_journal_paper_doi               10.2138/am.2006.2031
_journal_volume                  91
_journal_year                    2006
_chemical_formula_sum            'Al0.19 Ca0.88 K0.12 Mg0.83 O6 Si1.98'
_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                 105.344
_cell_angle_gamma                90
_cell_length_a                   9.5089
_cell_length_b                   8.6937
_cell_length_c                   5.1545
_cell_formula_units_Z            4
_cell_volume                     410.921
_database_code_amcsd             0004151
_diffrn_ambient_pressure         8.11e+06
_exptl_crystal_density_diffrn    3.505
_cod_original_formula_sum        '(Ca.88 K.12) Mg.83 Al.19 Si1.98 O6'
_cod_database_code               9004027