LMucko/crystallography-open-database huggingface dataset:
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 7.50 GPa, synthetic En60 orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006435
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 7.50 GPa, synthetic En60 orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Fe0.41 Mg0.59 O3 Si'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.035
_cell_length_b                   8.682
_cell_length_c                   5.1138
_cell_formula_units_Z            16
_cell_volume                     800.718
_database_code_amcsd             0008017
_diffrn_ambient_pressure         7.5e+06
_exptl_crystal_density_diffrn    3.760
_cod_original_formula_sum        '(Mg.59 Fe.41) Si O3'
_cod_database_code               9006435
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 0.00 GPa, natural orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006436
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 0.00 GPa, natural orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al0.14 Ca0.012 Fe0.24 Mg1.66 O6 Si1.94'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.231
_cell_length_b                   8.8095
_cell_length_c                   5.1873
_cell_formula_units_Z            8
_cell_volume                     833.111
_database_code_amcsd             0008018
_diffrn_ambient_pressure         0
_exptl_crystal_density_diffrn    3.324
_cod_original_cell_volume        833.112
_cod_original_formula_sum        'Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6'
_cod_database_code               9006436
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 1.04 GPa, natural orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006437
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 1.04 GPa, natural orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al0.14 Ca0.012 Fe0.24 Mg1.66 O6 Si1.94'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.189
_cell_length_b                   8.7765
_cell_length_c                   5.1723
_cell_formula_units_Z            8
_cell_volume                     825.684
_database_code_amcsd             0008019
_diffrn_ambient_pressure         1.04e+06
_exptl_crystal_density_diffrn    3.354
_cod_original_formula_sum        'Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6'
_cod_database_code               9006437
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 1.90 GPa, natural orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006438
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 1.90 GPa, natural orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al0.14 Ca0.012 Fe0.24 Mg1.66 O6 Si1.94'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.160
_cell_length_b                   8.7503
_cell_length_c                   5.1606
_cell_formula_units_Z            8
_cell_volume                     820.047
_database_code_amcsd             0008020
_diffrn_ambient_pressure         1.9e+06
_exptl_crystal_density_diffrn    3.377
_cod_original_formula_sum        'Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6'
_cod_database_code               9006438
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 3.00 GPa, natural orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006439
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 3.00 GPa, natural orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al0.14 Ca0.012 Fe0.24 Mg1.66 O6 Si1.94'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.115
_cell_length_b                   8.7184
_cell_length_c                   5.1472
_cell_formula_units_Z            8
_cell_volume                     812.917
_database_code_amcsd             0008021
_diffrn_ambient_pressure         3e+06
_exptl_crystal_density_diffrn    3.407
_cod_original_formula_sum        'Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6'
_cod_database_code               9006439
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 4.03 GPa, natural orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006440
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 4.03 GPa, natural orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al0.14 Ca0.012 Fe0.24 Mg1.66 O6 Si1.94'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.077
_cell_length_b                   8.6907
_cell_length_c                   5.1349
_cell_formula_units_Z            8
_cell_volume                     806.702
_database_code_amcsd             0008022
_diffrn_ambient_pressure         4.03e+06
_exptl_crystal_density_diffrn    3.433
_cod_original_formula_sum        'Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6'
_cod_database_code               9006440
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 4.93 GPa, natural orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006441
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 4.93 GPa, natural orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al0.14 Ca0.012 Fe0.24 Mg1.66 O6 Si1.94'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.051
_cell_length_b                   8.6683
_cell_length_c                   5.1244
_cell_formula_units_Z            8
_cell_volume                     801.822
_database_code_amcsd             0008023
_diffrn_ambient_pressure         4.93e+06
_exptl_crystal_density_diffrn    3.454
_cod_original_cell_volume        801.823
_cod_original_formula_sum        'Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6'
_cod_database_code               9006441
Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes Sample: P = 6.01 GPa, natural orthopyroxene
Hugh-Jones D A; Chopelas, A.; Angel, R. J.; Physics and Chemistry of Minerals 24 (1997) 301–310; doi:10.1007/s002690050042

data_9006442
_publ_section_title
;
 Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
 Sample: P = 6.01 GPa, natural orthopyroxene
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              301
_journal_page_last               310
_journal_paper_doi               10.1007/s002690050042
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al0.14 Ca0.012 Fe0.24 Mg1.66 O6 Si1.94'
_chemical_name_mineral           Enstatite
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.00
_cell_length_b                   8.642
_cell_length_c                   5.115
_cell_formula_units_Z            8
_cell_volume                     795.669
_database_code_amcsd             0008024
_diffrn_ambient_pressure         6.01e+06
_exptl_crystal_density_diffrn    3.481
_cod_original_formula_sum        'Mg1.66 Fe.24 Ca.012 Al.14 Si1.94 O6'
_cod_database_code               9006442
Scolecite, Part I: Refinement of high-order data, separation of internal and external vibrational amplitudes from displacement parameters
Stuckenschmidt, E.; Joswig, W.; Baur, W. H.; Hofmeister, W.; Physics and Chemistry of Minerals 24 (1997) 403–410; doi:10.1007/s002690050054

data_9006443
_publ_section_title
;
 Scolecite, Part I: Refinement of high-order data, separation of
 internal and external vibrational amplitudes from displacement parameters
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              403
_journal_page_last               410
_journal_paper_doi               10.1007/s002690050054
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al2 Ca H6 O13 Si3'
_chemical_name_mineral           Scolecite
_symmetry_space_group_name_H-M   'F 1 d 1'
_cell_angle_alpha                90
_cell_angle_beta                 90.615
_cell_angle_gamma                90
_cell_length_a                   18.502
_cell_length_b                   18.974
_cell_length_c                   6.525
_cell_formula_units_Z            8
_cell_volume                     2290.515
_exptl_crystal_density_diffrn    2.275
_cod_original_formula_sum        'Ca Al2 Si3 O13 H6'
_cod_database_code               9006443
Reversible hydration in synthetic mixite, BiCu6(OH)6(AsO4)3.nH2O(n<=3): hydration kinetics and crystal chemistry Sample: H20
Miletich, R.; Zemann, J.; Nowak, M.; Physics and Chemistry of Minerals 24 (1997) 411–422; doi:10.1007/s002690050055

data_9006444
_publ_section_title
;
 Reversible hydration in synthetic mixite, BiCu6(OH)6(AsO4)3.nH2O(n<=3):
 hydration kinetics and crystal chemistry
 Sample: H20
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              411
_journal_page_last               422
_journal_paper_doi               10.1007/s002690050055
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'As3 Bi Cu6 H60 O21'
_chemical_name_mineral           Mixite
_space_group_IT_number           176
_symmetry_space_group_name_Hall  '-P 6c'
_symmetry_space_group_name_H-M   'P 63/m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   13.633
_cell_length_b                   13.633
_cell_length_c                   5.913
_cell_volume                     951.747
_database_code_amcsd             0008026
_exptl_crystal_density_diffrn    4.227
_cod_original_formula_sum        'Bi Cu6 As3 O21 H60'
_cod_database_code               9006444
Reversible hydration in synthetic mixite, BiCu6(OH)6(AsO4)3.nH2O(n<=3): hydration kinetics and crystal chemistry Sample: N2
Miletich, R.; Zemann, J.; Nowak, M.; Physics and Chemistry of Minerals 24 (1997) 411–422; doi:10.1007/s002690050055

data_9006445
_publ_section_title
;
 Reversible hydration in synthetic mixite, BiCu6(OH)6(AsO4)3.nH2O(n<=3):
 hydration kinetics and crystal chemistry
 Sample: N2
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              411
_journal_page_last               422
_journal_paper_doi               10.1007/s002690050055
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'As3 Bi Cu6 H36 O19'
_chemical_name_mineral           Mixite
_space_group_IT_number           176
_symmetry_space_group_name_Hall  '-P 6c'
_symmetry_space_group_name_H-M   'P 63/m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   13.631
_cell_length_b                   13.631
_cell_length_c                   5.905
_cell_volume                     950.180
_database_code_amcsd             0008027
_exptl_crystal_density_diffrn    4.038
_cod_original_formula_sum        'Bi Cu6 As3 O19 H36'
_cod_database_code               9006445
Synthesis, structure, thermodynamic properties, and stability relations of K-cymrite, K[AlSi3O8].H2O
Fasshauer, D. W.; Chatterjee, N. D.; Marler, B.; Physics and Chemistry of Minerals 24 (1997) 455–462; doi:10.1007/s002690050060

data_9006446
_publ_section_title
;
 Synthesis, structure, thermodynamic properties, and stability
 relations of K-cymrite, K[AlSi3O8].H2O
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              455
_journal_page_last               462
_journal_paper_doi               10.1007/s002690050060
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Al H2 K O9 Si3'
_chemical_name_mineral           Cymrite-K
_space_group_IT_number           191
_symmetry_space_group_name_Hall  '-P 6 2'
_symmetry_space_group_name_H-M   'P 6/m m m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            1
_cell_length_a                   5.3348
_cell_length_b                   5.3348
_cell_length_c                   7.7057
_cell_volume                     189.924
_database_code_amcsd             0008028
_exptl_crystal_density_diffrn    2.591
_cod_original_formula_sum        'K (Al Si3) O9 H2'
_cod_database_code               9006446
Structure of Cu-bearing orthopyroxene, Mg(Cu.56,Mg.44)Si2O6, and behavior of Cu2+ in the orthopyroxene structure
Tachi, T.; Horiuchi, H.; Nagasawa, H.; Physics and Chemistry of Minerals 24 (1997) 463–476; doi:10.1007/s002690050061

data_9006447
_publ_section_title
;
 Structure of Cu-bearing orthopyroxene, Mg(Cu.56,Mg.44)Si2O6,
 and behavior of Cu2+ in the orthopyroxene structure
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              463
_journal_page_last               476
_journal_paper_doi               10.1007/s002690050061
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Cu0.564 Mg1.436 O6 Si2'
_chemical_name_mineral           Orthopyroxene
_space_group_IT_number           61
_symmetry_space_group_name_Hall  '-P 2ac 2ab'
_symmetry_space_group_name_H-M   'P b c a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   18.221
_cell_length_b                   8.890
_cell_length_c                   5.2260
_cell_formula_units_Z            8
_cell_volume                     846.532
_database_code_amcsd             0008029
_exptl_crystal_density_diffrn    3.498
_cod_original_formula_sum        'Mg1.436 Cu.564 Si2 O6'
_cod_database_code               9006447
Structural change associated with the incommensurate-normal phase transition in akermanite, Ca2MgSi2O7, at high pressure Sample: P = 0.0 GPa
Yang, H.; Hazen, R. M.; Downs, R. T.; Finger, L. W.; Physics and Chemistry of Minerals 24 (1997) 510–519; doi:10.1007/s002690050066

data_9006448
_publ_section_title
;
 Structural change associated with the incommensurate-normal phase transition
 in akermanite, Ca2MgSi2O7, at high pressure
 Sample: P = 0.0 GPa
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              510
_journal_page_last               519
_journal_paper_doi               10.1007/s002690050066
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Ca2 Mg O7 Si2'
_chemical_name_mineral           Akermanite
_space_group_IT_number           113
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.8338
_cell_length_b                   7.8338
_cell_length_c                   5.0082
_cell_formula_units_Z            2
_cell_volume                     307.345
_database_code_amcsd             0008030
_diffrn_ambient_pressure         0
_exptl_crystal_density_diffrn    2.946
_cod_original_formula_sum        'Ca2 Mg Si2 O7'
_cod_database_code               9006448
Structural change associated with the incommensurate-normal phase transition in akermanite, Ca2MgSi2O7, at high pressure Sample: P = 0.80 GPa
Yang, H.; Hazen, R. M.; Downs, R. T.; Finger, L. W.; Physics and Chemistry of Minerals 24 (1997) 510–519; doi:10.1007/s002690050066

data_9006449
_publ_section_title
;
 Structural change associated with the incommensurate-normal phase transition
 in akermanite, Ca2MgSi2O7, at high pressure
 Sample: P = 0.80 GPa
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              510
_journal_page_last               519
_journal_paper_doi               10.1007/s002690050066
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Ca2 Mg O7 Si2'
_chemical_name_mineral           Akermanite
_space_group_IT_number           113
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.8154
_cell_length_b                   7.8154
_cell_length_c                   4.9919
_cell_formula_units_Z            2
_cell_volume                     304.908
_database_code_amcsd             0008031
_diffrn_ambient_pressure         8e+05
_exptl_crystal_density_diffrn    2.969
_cod_original_formula_sum        'Ca2 Mg Si2 O7'
_cod_database_code               9006449
Structural change associated with the incommensurate-normal phase transition in akermanite, Ca2MgSi2O7, at high pressure Sample: P = 1.25 GPa
Yang, H.; Hazen, R. M.; Downs, R. T.; Finger, L. W.; Physics and Chemistry of Minerals 24 (1997) 510–519; doi:10.1007/s002690050066

data_9006450
_publ_section_title
;
 Structural change associated with the incommensurate-normal phase transition
 in akermanite, Ca2MgSi2O7, at high pressure
 Sample: P = 1.25 GPa
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              510
_journal_page_last               519
_journal_paper_doi               10.1007/s002690050066
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Ca2 Mg O7 Si2'
_chemical_name_mineral           Akermanite
_space_group_IT_number           113
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.8071
_cell_length_b                   7.8071
_cell_length_c                   4.9821
_cell_formula_units_Z            2
_cell_volume                     303.663
_database_code_amcsd             0008032
_diffrn_ambient_pressure         1.25e+06
_exptl_crystal_density_diffrn    2.982
_cod_original_formula_sum        'Ca2 Mg Si2 O7'
_cod_database_code               9006450
Structural change associated with the incommensurate-normal phase transition in akermanite, Ca2MgSi2O7, at high pressure Sample: P = 1.37 GPa
Yang, H.; Hazen, R. M.; Downs, R. T.; Finger, L. W.; Physics and Chemistry of Minerals 24 (1997) 510–519; doi:10.1007/s002690050066

data_9006451
_publ_section_title
;
 Structural change associated with the incommensurate-normal phase transition
 in akermanite, Ca2MgSi2O7, at high pressure
 Sample: P = 1.37 GPa
;
_journal_name_full               'Physics and Chemistry of Minerals'
_journal_page_first              510
_journal_page_last               519
_journal_paper_doi               10.1007/s002690050066
_journal_volume                  24
_journal_year                    1997
_chemical_formula_sum            'Ca2 Mg O7 Si2'
_chemical_name_mineral           Akermanite
_space_group_IT_number           113
_symmetry_space_group_name_Hall  'P -4 2ab'
_symmetry_space_group_name_H-M   'P -4 21 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.8046
_cell_length_b                   7.8046
_cell_length_c                   4.9772
_cell_formula_units_Z            2
_cell_volume                     303.170
_database_code_amcsd             0008033
_diffrn_ambient_pressure         1.37e+06
_exptl_crystal_density_diffrn    2.987
_cod_original_formula_sum        'Ca2 Mg Si2 O7'
_cod_database_code               9006451