LMucko/crystallography-open-database huggingface dataset:
Structure cristalline de l'upalite Al[(UO2)3O(OH)(PO4)2]*7H2O. Un exemple de macle mimetique
Piret, P.; Declercq, J.-P.; Bulletin de Mineralogie 106 (1983) 383–389; doi:

data_9009714
_publ_section_title
;
 Structure cristalline de l'upalite Al[(UO2)3O(OH)(PO4)2]*7H2O.
 Un exemple de macle mimetique
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              383
_journal_page_last               389
_journal_volume                  106
_journal_year                    1983
_chemical_compound_source
'Kobokobo, Kivu, Democratic Republic of the Congo'
_chemical_formula_sum            'Al H15 O23 P2 U3'
_chemical_name_mineral           Upalite
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_cell_angle_alpha                90
_cell_angle_beta                 111.5
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.704
_cell_length_b                   16.82
_cell_length_c                   9.332
_cell_volume                     2001.363
_database_code_amcsd             0012081
_exptl_crystal_density_diffrn    3.937
_cod_original_cell_volume        2001.364
_cod_original_formula_sum        'Al U3 P2 O23 H15'
_cod_database_code               9009714
Structure cristalline de la langite, Cu4[SO4(OH)6H2O]*H2O Locality: Mazega, Aveyrone, France
Galy, J.; Jaud, J.; Pulou, R.; Sempere, R.; Bulletin de Mineralogie 107 (1984) 641–648; doi:

data_9009715
_publ_section_title
;
 Structure cristalline de la langite, Cu4[SO4(OH)6H2O]*H2O
 Locality: Mazega, Aveyrone, France
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              641
_journal_page_last               648
_journal_volume                  107
_journal_year                    1984
_chemical_formula_sum            'Cu4 H10 O12 S'
_chemical_name_mineral           Langite
_space_group_IT_number           7
_symmetry_space_group_name_Hall  'P -2yc'
_symmetry_space_group_name_H-M   'P 1 c 1'
_cell_angle_alpha                90
_cell_angle_beta                 90.02
_cell_angle_gamma                90
_cell_length_a                   7.118
_cell_length_b                   6.034
_cell_length_c                   11.209
_cell_volume                     481.427
_exptl_crystal_density_diffrn    3.369
_cell_formula_units_Z            2
_cod_depositor_comments
;
       Z value inserted to be consistent with given formula.
     Water oxygen renamed so it is considered as oxygen.
                           miguel.
;
_cod_original_formula_sum        'Cu4 S (O12 H10)'
_cod_database_code               9009715
_database_code_amcsd 0012082
Crystal structural refinement of Ca-exchanged barrerite Note: made from natural barrierite in the lab
Sacerdoti, M.; Gomedi, I.; Bulletin de Mineralogie 107 (1984) 799–804; doi:

data_9009716
_publ_section_title
;
 Crystal structural refinement of Ca-exchanged barrerite
 Note: made from natural barrierite in the lab
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              799
_journal_page_last               804
_journal_volume                  107
_journal_year                    1984
_chemical_compound_source        'Capo Pula, Sardegna, Italy'
_chemical_formula_sum            'Al2.124 Ca0.92 H38 O27.05 Si6.876'
_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_length_a                   13.610
_cell_length_b                   18.214
_cell_formula_units_Z            8
_cell_length_c                   17.833
_cell_volume                     4420.668
_database_code_amcsd             0012083
_exptl_crystal_density_diffrn    2.279
_cod_original_formula_sum        'Ca.92 (Si6.876 Al2.124) O27.05 H38'
_cod_database_code               9009716
L'imiterite, Ag2HgS2 nouvelle espece minerale; proprietes et structure cristalline Locality: Tinerhir, Boulmane, Morocco
Guillou, J. J.; Monthel, J.; Picot, P.; Pillard, F.; Protas, J.; Samama, J. C.; Bulletin de Mineralogie 108 (1985) 457–464; doi:

data_9009717
_publ_section_title
;L'imiterite, Ag2HgS2 nouvelle espece minerale; proprietes et structure
 cristalline Locality: Tinerhir, Boulmane, Morocco
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              457
_journal_page_last               464
_journal_volume                  108
_journal_year                    1985
_chemical_compound_source        'Tinerhir, Boulmane, Morocco'
_chemical_formula_sum            'Ag2 Hg S2'
_chemical_name_mineral           Imiterite
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 107.12
_cell_angle_gamma                90
_cell_length_a                   4.0394
_cell_length_b                   8.0050
_cell_length_c                   6.5812
_cell_formula_units_Z            2
_cell_volume                     203.376
_database_code_amcsd             0012085
_exptl_crystal_density_diffrn    7.846
_cod_database_code               9009717
Les phosphates d'uranyle et d'aluminium de Kobokobo IX. L'althupite AlTh(UO2)[(UO2)3O(OH)PO4)2]2(OH)3*15H2O, nouveau mineral; proprietes et structure cristalline Note: Sample is form Kobokobo, Kivu, Zaire
Piret, P.; Deliens, M.; Bulletin de Mineralogie 110 (1987) 65–72; doi:

data_9009718
_publ_section_title
;
 Les phosphates d'uranyle et d'aluminium de Kobokobo
 IX. L'althupite AlTh(UO2)[(UO2)3O(OH)PO4)2]2(OH)3*15H2O, nouveau mineral;
 proprietes et structure cristalline
 Note: Sample is form Kobokobo, Kivu, Zaire
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              65
_journal_page_last               72
_journal_volume                  110
_journal_year                    1987
_chemical_formula_sum            'Al H35 O52 P4 Th U7'
_chemical_name_mineral           Althupite
_space_group_IT_number           2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                72.64
_cell_angle_beta                 68.20
_cell_angle_gamma                84.21
_cell_formula_units_Z            2
_cell_length_a                   10.953
_cell_length_b                   18.567
_cell_length_c                   13.504
_cell_volume                     2433.537
_database_code_amcsd             0012087
_exptl_crystal_density_diffrn    3.980
_cod_original_formula_sum        'U7 Th Al P4 O52 H35'
_cod_database_code               9009718
Une wakefieldite-(Ce) non plombifere: nouvelles donnees sur l'espece minerale correspondant a l'orthovanadate de cerium
Baudracco-Gritti C; Quartieri, S.; Vezzalini, G.; Permingeat, F.; Pillard, F.; Rinaldi, R.; Bulletin de Mineralogie 110 (1987) 657–663; doi:

data_9009719
_publ_section_title
;
 Une wakefieldite-(Ce) non plombifere: nouvelles donnees sur
 l'espece minerale correspondant a l'orthovanadate de cerium
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              657
_journal_page_last               663
_journal_volume                  110
_journal_year                    1987
_chemical_formula_sum
'As0.08 Ce0.52 La0.18 Nd0.15 O4 Pr0.05 Sm0.02 V0.92 Y0.07'
_chemical_name_mineral           Wakefieldite-(Ce)
_space_group_IT_number           141
_symmetry_space_group_name_Hall  '-I 4bd 2'
_symmetry_space_group_name_H-M   'I 41/a m d :2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   7.354
_cell_length_b                   7.354
_cell_length_c                   6.488
_cell_formula_units_Z            4
_cell_volume                     350.880
_database_code_amcsd             0012088
_exptl_crystal_density_diffrn    4.782
_cod_original_sg_symbol_H-M      'I 41/a m d'
_cod_original_formula_sum
'Ce.52 La.18 Nd.15 Y.07 Pr.05 Sm.02 (V.92 As.08) O4'
_cod_database_code               9009719
Drugmanite, Pb2(Fe0.78Al0.22)H(PO4)2(OH)2: Its crystal structure and place in the datolite group Note: anisoU's taken from ICSD
King, G. S. D.; Sengier-Roberts L; Bulletin de Mineralogie 111 (1988) 431–437; doi:

data_9009720
_publ_section_title
;
 Drugmanite, Pb2(Fe0.78Al0.22)H(PO4)2(OH)2:
 Its crystal structure and place in the datolite group
 Note: anisoU's taken from ICSD
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              431
_journal_page_last               437
_journal_volume                  111
_journal_year                    1988
_chemical_compound_source        'Richelle, Belgium'
_chemical_formula_sum            'Al0.22 Fe0.78 H O10 P2 Pb2'
_chemical_name_mineral           Drugmanite
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2yab'
_symmetry_space_group_name_H-M   'P 1 21/a 1'
_cell_angle_alpha                90
_cell_angle_beta                 90.41
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   11.111
_cell_length_b                   7.986
_cell_length_c                   4.643
_cell_volume                     411.974
_database_code_amcsd             0012089
_exptl_crystal_density_diffrn    5.537
_cod_original_formula_sum        'Pb2 (Fe.78 Al.22) P2 O10 H'
_cod_database_code               9009720
Nouvelle determination de la structure cristalline de la dumonite Pb2[(UO2)3O2(PO4)2]*5H2O
Piret, P.; Piret-Meunier J; Bulletin de Mineralogie 111 (1988) 439–442; doi:

data_9009721
_publ_section_title
;
 Nouvelle determination de la structure cristalline
 de la dumonite Pb2[(UO2)3O2(PO4)2]*5H2O
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              439
_journal_page_last               442
_journal_volume                  111
_journal_year                    1988
_chemical_compound_source        'Shinkolobwe, Shaba, Zaire'
_chemical_formula_sum            'O21 P2 Pb2 U3'
_chemical_name_mineral           Dumontite
_space_group_IT_number           11
_symmetry_space_group_name_Hall  '-P 2yb'
_symmetry_space_group_name_H-M   'P 1 21/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 109.03
_cell_angle_gamma                90
_cell_length_a                   8.118
_cell_length_b                   16.819
_cell_length_c                   6.983
_cell_formula_units_Z            2
_cell_volume                     901.328
_database_code_amcsd             0012090
_exptl_crystal_density_diffrn    5.624
_cod_original_formula_sum        'Pb2 U3 P2 O21'
_cod_database_code               9009721
La francoisite-(Nd), nouveau phosphate d'uranyle et de terres rares; proprietes et structure cristalline
Piret, P.; Deliens, M.; Piret-Meunier J; Bulletin de Mineralogie 111 (1988) 443–449; doi:

data_9009722
_publ_section_title
;
 La francoisite-(Nd), nouveau phosphate d'uranyle et
 de terres rares; proprietes et structure cristalline
;
_journal_name_full               'Bulletin de Mineralogie'
_journal_page_first              443
_journal_page_last               449
_journal_volume                  111
_journal_year                    1988
_chemical_compound_source        'Kamoto, Shaba, Democratic Republic of Congo'
_chemical_formula_sum            'Nd O22 P2 U3'
_chemical_name_mineral           Francoisite-(Nd)
_space_group_IT_number           14
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 1'
_cell_angle_alpha                90
_cell_angle_beta                 112.77
_cell_angle_gamma                90
_cell_length_a                   9.298
_cell_length_b                   15.605
_cell_length_c                   13.668
_cell_formula_units_Z            4
_cell_volume                     1828.607
_database_code_amcsd             0012091
_exptl_crystal_density_diffrn    4.621
_cod_original_formula_sum        'Nd U3 P2 O22'
_cod_database_code               9009722
A refinement of the crystal structure of covellite, CuS
Ohmasa, M.; Suzuki, M.; Takeuchi, Y.; Mineralogical Journal 8 (1977) 311–319; doi:10.2465/minerj.8.311

data_9009723
_publ_section_title
;
 A refinement of the crystal structure of covellite, CuS
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              311
_journal_page_last               319
_journal_paper_doi               10.2465/minerj.8.311
_journal_volume                  8
_journal_year                    1977
_chemical_compound_source        'Kosaka mine, Akita Prefecture, Japan'
_chemical_formula_sum            'Cu S'
_chemical_name_mineral           Covellite
_space_group_IT_number           194
_symmetry_space_group_name_Hall  '-P 6c 2c'
_symmetry_space_group_name_H-M   'P 63/m m c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   3.796
_cell_length_b                   3.796
_cell_length_c                   16.382
_cell_formula_units_Z            6
_cell_volume                     204.433
_database_code_amcsd             0014418
_exptl_crystal_density_diffrn    4.660
_cod_database_code               9009723
Polytypism in xonotlite: (I) Structure of an A-1 polytype
Kudoh, Y.; Takeuchi, Y.; Mineralogical Journal 9 (1979) 349–373; doi:10.2465/minerj.9.349

data_9009724
_publ_section_title
;
 Polytypism in xonotlite: (I) Structure of an A-1 polytype
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              349
_journal_page_last               373
_journal_paper_doi               10.2465/minerj.9.349
_journal_volume                  9
_journal_year                    1979
_chemical_compound_source        'Heguri, Chiba Prefecture, Japan'
_chemical_formula_sum            'Ca6 H2 O19 Si6'
_chemical_name_mineral           Xonotlite
_space_group_IT_number           2
_symmetry_space_group_name_Hall  '-P 1 (-x,-1/2*y+1/2*z,1/2*y+1/2*z)'
_symmetry_space_group_name_H-M   'A -1'
_cell_angle_alpha                89.99
_cell_angle_beta                 90.36
_cell_angle_gamma                102.18
_cell_formula_units_Z            2
_cell_length_a                   8.712
_cell_length_b                   7.363
_cell_length_c                   14.023
_cell_volume                     879.259
_database_code_amcsd             0014421
_exptl_crystal_density_diffrn    2.701
_cod_original_formula_sum        'Ca6 Si6 O19 H2'
_cod_database_code               9009724
The refinement of the structure of synthetic kalsilite Locality: synthetic
Andou, Y.; Kawahara, A.; Mineralogical Journal 12 (1984) 153–161; doi:10.2465/minerj.12.153

data_9009725
_publ_section_title
;
 The refinement of the structure of synthetic kalsilite
 Locality: synthetic
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              153
_journal_page_last               161
_journal_paper_doi               10.2465/minerj.12.153
_journal_volume                  12
_journal_year                    1984
_chemical_formula_sum            'Al K O6 Si'
_chemical_name_mineral           Kalsilite
_space_group_IT_number           173
_symmetry_space_group_name_Hall  'P 6c'
_symmetry_space_group_name_H-M   'P 63'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   5.151
_cell_length_b                   5.151
_cell_length_c                   8.690
_cell_formula_units_Z            2
_cell_volume                     199.680
_exptl_crystal_density_diffrn    3.163
_cod_original_cell_volume        199.679
_cod_original_formula_sum        'K Al Si O6'
_cod_database_code               9009725
The crystal structure of yeatmanite
Kato, T.; Mineralogical Journal 13 (1986) 53–64; doi:10.2465/minerj.13.53

data_9009726
_publ_section_title
;
 The crystal structure of yeatmanite
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              53
_journal_page_last               64
_journal_paper_doi               10.2465/minerj.13.53
_journal_volume                  13
_journal_year                    1986
_chemical_compound_source        'Franklin, New Jersey, USA'
_chemical_formula_sum            'Fe0.2 Mn9 O28 Sb2 Si3.8 Zn6'
_chemical_name_mineral           Yeatmanite
_space_group_IT_number           2
_symmetry_space_group_name_Hall  '-P 1'
_symmetry_space_group_name_H-M   'P -1'
_cell_angle_alpha                92.06
_cell_angle_beta                 101.19
_cell_angle_gamma                76.34
_cell_length_a                   5.544
_cell_length_b                   11.683
_cell_length_c                   9.134
_cell_formula_units_Z            1
_cell_volume                     563.921
_database_code_amcsd             0014427
_exptl_crystal_density_diffrn    4.995
_cod_original_formula_sum        'Mn9 Sb2 Zn6 Si3.8 Fe.2 O28'
_cod_database_code               9009726
The crystal structure of hollandite
Miura, H.; Mineralogical Journal 13 (1986) 119–129; doi:10.2465/minerj.13.119

data_9009727
_publ_section_title
;
 The crystal structure of hollandite
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              119
_journal_page_last               129
_journal_paper_doi               10.2465/minerj.13.119
_journal_volume                  13
_journal_year                    1986
_chemical_compound_source        'Gowari Wadhona, India'
_chemical_formula_sum            'Ba0.75 Fe0.08 K0.19 Mn3.92 O8'
_chemical_name_mineral           Hollandite
_space_group_IT_number           12
_symmetry_space_group_name_Hall  '-I 2y'
_symmetry_space_group_name_H-M   'I 1 2/m 1'
_cell_angle_alpha                90
_cell_angle_beta                 91.17
_cell_angle_gamma                90
_cell_length_a                   10.006
_cell_length_b                   2.866
_cell_length_c                   9.746
_cell_formula_units_Z            2
_cell_volume                     279.430
_database_code_amcsd             0014428
_exptl_crystal_density_diffrn    5.446
_cod_original_formula_sum        'Ba.75 K.19 (Mn3.92 Fe.08) O8'
_cod_database_code               9009727
The crystal structure of high temperature form of kalsilite (KAlSiO4) at 950 C Note: B(1,2)'s corrected to obey symmetry restrictions Note: Synthetic sample Note: x(O1) adjusted to match reported bond lengths
Kawahara, A.; Andou, Y.; Marumo, F.; Okuno, M.; Mineralogical Journal 13 (1987) 260–270; doi:10.2465/minerj.13.260

data_9009728
_publ_section_title
;The crystal structure of high temperature form of kalsilite (KAlSiO4) at 950
 C Note: B(1,2)'s corrected to obey symmetry restrictions Note: Synthetic
 sample Note: x(O1) adjusted to match reported bond lengths
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              260
_journal_page_last               270
_journal_paper_doi               10.2465/minerj.13.260
_journal_volume                  13
_journal_year                    1987
_chemical_formula_sum            'Al K O4 Si'
_chemical_name_mineral           Kalsilite
_space_group_IT_number           186
_symmetry_space_group_name_Hall  'P 6c -2c'
_symmetry_space_group_name_H-M   'P 63 m c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   5.30
_cell_length_b                   5.30
_cell_length_c                   8.65
_cell_formula_units_Z            2
_cell_volume                     210.426
_database_code_amcsd             0014429
_exptl_crystal_density_diffrn    2.496
_cod_original_formula_sum        'K Al Si O4'
_cod_database_code               9009728
Further refinement of the goyazite structure
Kato, T.; Mineralogical Journal 13 (1987) 390–396; doi:10.2465/minerj.13.390

data_9009729
_publ_section_title
;
 Further refinement of the goyazite structure
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              390
_journal_page_last               396
_journal_paper_doi               10.2465/minerj.13.390
_journal_volume                  13
_journal_year                    1987
_chemical_compound_source
'Palermo mine, North Groton, New Hampshire, USA'
_chemical_formula_sum            'Al3 H7 O14 P2 Sr'
_chemical_name_mineral           Goyazite
_space_group_IT_number           166
_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                   7.015
_cell_length_b                   7.015
_cell_length_c                   16.558
_cell_formula_units_Z            3
_cell_volume                     705.657
_database_code_amcsd             0014430
_exptl_crystal_density_diffrn    3.258
_cod_original_sg_symbol_H-M      'R -3 m'
_cod_original_formula_sum        'Sr Al3 P2 O14 H7'
_cod_database_code               9009729
On variety of the Ca coordination in the incommensurate structure of synthetic iron-bearing akermanite, Ca2(Mg0.55,Fe0.45)Si2O7 Note: Sample is synthetic, this is the structure obtained from a standard refinement
Kusaka, K.; Ohmasa, M.; Hagiya, K.; Iishi, K.; Haga, N.; Mineralogical Journal 20 (1998) 47–58; doi:10.2465/minerj.20.47

data_9009730
_publ_section_title
;On variety of the Ca coordination in the incommensurate structure of
 synthetic iron-bearing akermanite, Ca2(Mg0.55,Fe0.45)Si2O7 Note: Sample is
 synthetic, this is the structure obtained from a standard refinement
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              47
_journal_page_last               58
_journal_paper_doi               10.2465/minerj.20.47
_journal_volume                  20
_journal_year                    1998
_chemical_formula_sum            'Ca2 Fe0.446 Mg0.554 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                   7.8679
_cell_length_b                   7.8679
_cell_length_c                   5.0144
_cell_formula_units_Z            2
_cell_volume                     310.411
_database_code_amcsd             0014431
_exptl_crystal_density_diffrn    3.067
_cod_original_formula_sum        'Ca2 (Mg.554 Fe.446) Si2 O7'
_cod_database_code               9009730
On variety of the Ca coordination in the incommensurate structure of synthetic iron-bearing akermanite, Ca2(Mg0.55,Fe0.45)Si2O7 Note: Sample is synthetic, this is the structure obtained by refining the incommensurate structure
Kusaka, K.; Ohmasa, M.; Hagiya, K.; Iishi, K.; Haga, N.; Mineralogical Journal 20 (1998) 47–58; doi:10.2465/minerj.20.47

data_9009731
_publ_section_title
;On variety of the Ca coordination in the incommensurate structure of
 synthetic iron-bearing akermanite, Ca2(Mg0.55,Fe0.45)Si2O7 Note: Sample is
 synthetic, this is the structure obtained by refining the incommensurate
 structure
;
_journal_name_full               'Mineralogical Journal'
_journal_page_first              47
_journal_page_last               58
_journal_paper_doi               10.2465/minerj.20.47
_journal_volume                  20
_journal_year                    1998
_chemical_formula_sum            'Ca2 Fe0.446 Mg0.554 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                   7.8679
_cell_length_b                   7.8679
_cell_length_c                   5.0144
_cell_formula_units_Z            2
_cell_volume                     310.411
_database_code_amcsd             0014432
_exptl_crystal_density_diffrn    3.067
_cod_original_formula_sum        'Ca2 (Mg.554 Fe.446) Si2 O7'
_cod_database_code               9009731
_cod_duplicate_entry 9009730