LMucko/crystallography-open-database huggingface dataset:
High-pressure behaviour of clinochlore Sample: P = 0 GPa
Welch, M. D.; Marshall, W. G.; American Mineralogist 86 (2001) 1380–1386; doi:

data_9002650
_publ_section_title
;
 High-pressure behaviour of clinochlore
 Sample: P = 0 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1380
_journal_page_last               1386
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Al2 D8 Mg5 O18 Si3'
_chemical_name_mineral           'Clinochlore (deuterated)'
_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                 97.07
_cell_angle_gamma                90
_cell_length_a                   5.332
_cell_length_b                   9.224
_cell_length_c                   14.414
_cell_formula_units_Z            2
_cell_volume                     703.524
_diffrn_ambient_pressure         0
_exptl_crystal_density_diffrn    2.662
_cod_original_formula_sum        'Mg5 Al2 Si3 O18 D8'
_cod_database_code               9002650
_database_code_amcsd 0002739
High-pressure behaviour of clinochlore P = 1.2 GPa
Welch, M. D.; Marshall, W. G.; American Mineralogist 86 (2001) 1380–1386; doi:

data_9002651
_publ_section_title
;
 High-pressure behaviour of clinochlore
 P = 1.2 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1380
_journal_page_last               1386
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Al2 D8 Mg5 O18 Si3'
_chemical_name_mineral           'Clinochlore (deuterated)'
_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                 97.27
_cell_angle_gamma                90
_cell_length_a                   5.308
_cell_length_b                   9.186
_cell_length_c                   14.316
_cell_formula_units_Z            2
_cell_volume                     692.426
_diffrn_ambient_pressure         1.2e+06
_exptl_crystal_density_diffrn    2.704
_cod_original_formula_sum        'Mg5 Al2 Si3 O18 D8'
_cod_database_code               9002651
_database_code_amcsd 0002740
High-pressure behaviour of clinochlore P = 2.46 GPa
Welch, M. D.; Marshall, W. G.; American Mineralogist 86 (2001) 1380–1386; doi:

data_9002652
_publ_section_title
;
 High-pressure behaviour of clinochlore
 P = 2.46 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1380
_journal_page_last               1386
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Al2 D8 Mg5 O18 Si3'
_chemical_name_mineral           'Clinochlore (deuterated)'
_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                 96.88
_cell_angle_gamma                90
_cell_length_a                   5.283
_cell_length_b                   9.143
_cell_length_c                   14.220
_cell_formula_units_Z            2
_cell_volume                     681.915
_diffrn_ambient_pressure         2.46e+06
_exptl_crystal_density_diffrn    2.746
_cod_original_formula_sum        'Mg5 Al2 Si3 O18 D8'
_cod_database_code               9002652
_database_code_amcsd 0002741
High-pressure behaviour of clinochlore P = 4.65 GPa
Welch, M. D.; Marshall, W. G.; American Mineralogist 86 (2001) 1380–1386; doi:

data_9002653
_publ_section_title
;
 High-pressure behaviour of clinochlore
 P = 4.65 GPa
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1380
_journal_page_last               1386
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Al2 D8 Mg5 O18 Si3'
_chemical_name_mineral           'Clinochlore (deuterated)'
_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                 97.38
_cell_angle_gamma                90
_cell_length_a                   5.243
_cell_length_b                   9.068
_cell_length_c                   14.117
_cell_formula_units_Z            2
_cell_volume                     665.612
_diffrn_ambient_pressure         4.65e+06
_exptl_crystal_density_diffrn    2.813
_cod_original_formula_sum        'Mg5 Al2 Si3 O18 D8'
_cod_database_code               9002653
_database_code_amcsd 0002742
Crystal structure analysis of synthetic Ca4Fe1.5Al17.67O32: A high pressure, spinel-related phase
Kahlenberg, V.; Shaw, C. S. J.; Parise, J. B.; American Mineralogist 86 (2001) 1477–1482; doi:

data_9002654
_publ_section_title
;
 Crystal structure analysis of synthetic Ca4Fe1.5Al17.67O32: A high pressure,
 spinel-related phase
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1477
_journal_page_last               1482
_journal_volume                  86
_journal_year                    2001
_chemical_formula_structural     Ca4Fe1.5Al17.67O32
_chemical_formula_sum            'Al17.499 Ca4 Fe1.501 O32'
_space_group_IT_number           122
_symmetry_space_group_name_Hall  'I -4 2bw'
_symmetry_space_group_name_H-M   'I -4 2 d'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   20.1847
_cell_length_b                   20.1847
_cell_length_c                   5.6203
_cell_formula_units_Z            4
_cell_volume                     2289.835
_database_code_amcsd             0002743
_exptl_crystal_density_diffrn    3.563
_cod_original_cell_volume        2289.834
_cod_original_formula_sum        'Ca4 Fe1.501 Al17.499 O32'
_cod_database_code               9002654
_amcsd_formula_title             Ca4Fe1.5Al17.67O32
Crystal structure of phase X, a high pressure alkali-rich hydrous silicate and its anhydrous equivalent Sample: JKW42
Yang, H.; Konzett, J.; Prewitt, C. T.; American Mineralogist 86 (2001) 1483–1488; doi:

data_9002655
_publ_section_title
;
 Crystal structure of phase X, a high pressure alkali-rich hydrous silicate
 and its anhydrous equivalent
 Sample: JKW42
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1483
_journal_page_last               1488
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Al0.12 Mg1.88 Na1.78 O7 Si2'
_chemical_name_common            Phase-X
_chemical_name_mineral           Phase-X
_space_group_IT_number           162
_symmetry_space_group_name_Hall  '-P 3 2'
_symmetry_space_group_name_H-M   'P -3 1 m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   4.9827
_cell_length_b                   4.9827
_cell_length_c                   6.4354
_cell_formula_units_Z            1
_cell_volume                     138.368
_database_code_amcsd             0002744
_exptl_crystal_density_diffrn    3.096
_cod_original_formula_sum        'Na1.78 (Mg1.88 Al.12) Si2 O7'
_cod_database_code               9002655
Crystal structure of phase X, a high pressure alkali-rich hydrous silicate and its anhydrous equivalent Sample: JKW56
Yang, H.; Konzett, J.; Prewitt, C. T.; American Mineralogist 86 (2001) 1483–1488; doi:

data_9002656
_publ_section_title
;
 Crystal structure of phase X, a high pressure alkali-rich hydrous silicate
 and its anhydrous equivalent
 Sample: JKW56
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1483
_journal_page_last               1488
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'K1.54 Mg1.92 O7 Si2'
_chemical_name_common            Phase-X
_chemical_name_mineral           Phase-X
_space_group_IT_number           185
_symmetry_space_group_name_Hall  'P 6c -2'
_symmetry_space_group_name_H-M   'P 63 c m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            2
_cell_length_a                   5.0812
_cell_length_b                   5.0812
_cell_length_c                   13.2112
_cell_volume                     295.397
_database_code_amcsd             0002745
_exptl_crystal_density_diffrn    3.092
_cod_original_formula_sum        'K1.54 Mg1.92 Si2 O7'
_cod_database_code               9002656
Fluoro-edenite from Biancavilla (Catania, Sicily, Italy): Crystal chemistry of a new amphibole end-member
Gianfagna, A.; Oberti, R.; American Mineralogist 86 (2001) 1489–1493; doi:

data_9002657
_publ_section_title
;
 Fluoro-edenite from Biancavilla (Catania, Sicily, Italy):
 Crystal chemistry of a new amphibole end-member
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1489
_journal_page_last               1493
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum
'Al0.56 Ca1.62 Cl0.02 F1.98 Fe0.3 K0.15 Mg4.74 Mn0.04 Na0.85 O22 Si7.44'
_chemical_name_mineral           Fluoro-edenite
_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                 104.77
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.846
_cell_length_b                   18.009
_cell_length_c                   5.277
_cell_volume                     904.781
_database_code_amcsd             0002746
_exptl_crystal_density_diffrn    3.079
_cod_original_formula_sum
'O22 (Cl.02 F1.98) (Si7.44 Al.56) Mg4.74 Fe.3 Ca1.62 Na.85 Mn.04 K.15'
_cod_database_code               9002657
Description and crystal structure of turtmannite, a new mineral with a 68 Angstrom period related to mcgovernite Note: z-coordinate of Mn12 has been modified
Brugger, J.; Armbruster, T.; Meisser, N.; Hejny, C.; Grobety, B.; American Mineralogist 86 (2001) 1494–1505; doi:

data_9002658
_publ_section_title
;
 Description and crystal structure of turtmannite, a new mineral with a
 68 Angstrom period related to mcgovernite
 Note: z-coordinate of Mn12 has been modified
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1494
_journal_page_last               1505
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'As6.72 Mg26.64 Mn119 O291.6 Si16.56 V14.28'
_chemical_name_mineral           Turtmannite
_space_group_IT_number           167
_symmetry_space_group_name_Hall  '-R 3 2"c'
_symmetry_space_group_name_H-M   'R -3 c :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   8.259
_cell_length_b                   8.259
_cell_length_c                   204.3
_cell_formula_units_Z            2
_cell_volume                     12068.518
_database_code_amcsd             0002747
_exptl_crystal_density_diffrn    3.728
_cod_original_cell_volume        12068.517
_cod_original_sg_symbol_H-M      'R -3 c'
_cod_original_formula_sum        'Mg26.64 Mn119 V14.28 As6.72 Si16.56 O291.6'
_cod_database_code               9002658
The crystal structure of low melanophlogite
Nakagawa, T.; Kihara, K.; Harada, K.; American Mineralogist 86 (2001) 1506–1512; doi:

data_9002659
_publ_section_title
;
 The crystal structure of low melanophlogite
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1506
_journal_page_last               1512
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'C Mg3 O46 Si23'
_chemical_name_mineral           Melanophlogite
_symmetry_space_group_name_H-M   'P 42/n b c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            8
_cell_length_a                   26.818
_cell_length_b                   26.818
_cell_length_c                   13.365
_cell_volume                     9612.176
_database_code_amcsd             0002748
_exptl_crystal_density_diffrn    2.027
_cod_original_cell_volume        9612.177
_cod_original_formula_sum        'Si23 O46 Mg3 C'
_cod_database_code               9002659
Crystal structures of Na and K aluminate mullites Sample: Na
Fischer, R. X.; Schmucker, M.; Angerer, P.; Schneider, H.; American Mineralogist 86 (2001) 1513–1518; doi:

data_9002660
_publ_section_title
;
 Crystal structures of Na and K aluminate mullites
 Sample: Na
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1513
_journal_page_last               1518
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Al3 Na0.335 O4.665'
_chemical_name_mineral           Mullite
_space_group_IT_number           55
_symmetry_space_group_name_Hall  '-P 2 2ab'
_symmetry_space_group_name_H-M   'P b a m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.6819
_cell_length_b                   7.6810
_cell_length_c                   2.91842
_cell_volume                     172.200
_database_code_amcsd             0002749
_exptl_crystal_density_diffrn    3.149
_cod_original_formula_sum        'Na.335 Al3 O4.665'
_cod_database_code               9002660
Crystal structures of Na and K aluminate mullites Sample: K
Fischer, R. X.; Schmucker, M.; Angerer, P.; Schneider, H.; American Mineralogist 86 (2001) 1513–1518; doi:

data_9002661
_publ_section_title
;
 Crystal structures of Na and K aluminate mullites
 Sample: K
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1513
_journal_page_last               1518
_journal_volume                  86
_journal_year                    2001
_chemical_formula_sum            'Al3 K0.335 O4.665'
_chemical_name_mineral           Mullite
_space_group_IT_number           55
_symmetry_space_group_name_Hall  '-P 2 2ab'
_symmetry_space_group_name_H-M   'P b a m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   7.6934
_cell_length_b                   7.6727
_cell_length_c                   2.93231
_cell_volume                     173.092
_database_code_amcsd             0002750
_exptl_crystal_density_diffrn    3.236
_cod_original_formula_sum        'K.335 Al3 O4.665'
_cod_database_code               9002661
H positions in leucophoenicite, Mn7Si3(OH)2: A close relative of the hydrous B phases
Welch, M. D.; Marshall, W. G.; Ross, N. L.; Knight, K. S.; American Mineralogist 87 (2002) 154–159; doi:

data_9002662
_publ_section_title
;
 H positions in leucophoenicite, Mn7Si3(OH)2:
 A close relative of the hydrous B phases
;
_journal_name_full               'American Mineralogist'
_journal_page_first              154
_journal_page_last               159
_journal_volume                  87
_journal_year                    2002
_chemical_compound_source        'Franklin, New Jersey, USA'
_chemical_formula_sum            'Ca0.64 H2 Mg0.04 Mn6.28 O14 Si3 Zn0.04'
_chemical_name_mineral           Leucophoenicite
_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                 103.956
_cell_angle_gamma                90
_cell_length_a                   10.8259
_cell_length_b                   4.8565
_cell_length_c                   11.3758
_cell_formula_units_Z            2
_cell_volume                     580.439
_database_code_amcsd             0002751
_exptl_crystal_density_diffrn    3.917
_cod_original_formula_sum        'Mn6.28 Ca.64 Mg.04 Zn.04 Si3 O14 H2'
_cod_database_code               9002662
Ominelite, (Fe,Mg)Al3BSiO9 (Fe2+ analogue of grandidierite), a new mineral from porphyritic granite in Japan
Hiroi, Y.; Grew, E. S.; Motoyoshi, Y.; Peacor, D. R.; Rouse, R. C.; Matsubara, S.; Yokoyama, K.; Miyawaki, R.; McGee, J. J.; Su, S.-C.; Hokada, T.; Furukawa, N.; Shibasaki, H.; American Mineralogist 87 (2002) 160–170; doi:

data_9002663
_publ_section_title
;
 Ominelite, (Fe,Mg)Al3BSiO9 (Fe2+ analogue of grandidierite),
 a new mineral from porphyritic granite in Japan
;
_journal_name_full               'American Mineralogist'
_journal_page_first              160
_journal_page_last               170
_journal_volume                  87
_journal_year                    2002
_chemical_formula_sum            'Al3 B Fe O9 Si'
_chemical_name_mineral           Ominelite
_space_group_IT_number           62
_symmetry_space_group_name_Hall  '-P 2c 2ab'
_symmetry_space_group_name_H-M   'P b n m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   10.343
_cell_length_b                   11.095
_cell_length_c                   5.7601
_cell_formula_units_Z            4
_cell_volume                     661.004
_database_code_amcsd             0002752
_exptl_crystal_density_diffrn    3.212
_cod_original_formula_sum        'Al3 Fe Si B O9'
_cod_database_code               9002663
Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T, and 24R polysomes Sample: 24R
Hejny, C.; Armbruster, T.; American Mineralogist 87 (2002) 277–292; doi:

data_9002664
_publ_section_title
;Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T, and 24R
 polysomes Sample: 24R
;
_journal_name_full               'American Mineralogist'
_journal_page_first              277
_journal_page_last               292
_journal_volume                  87
_journal_year                    2002
_chemical_formula_sum            'Al7 Fe0.72 H Mg2.5 O16 Ti0.78'
_chemical_name_mineral           Magnesiohogbomite-6N6S
_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                   5.7145
_cell_length_b                   5.7145
_cell_length_c                   55.056
_cell_formula_units_Z            6
_cell_volume                     1557.011
_database_code_amcsd             0002753
_exptl_crystal_density_diffrn    3.738
_cod_original_sg_symbol_H-M      'R -3 m'
_cod_original_formula_sum        'Al7 Ti.78 Fe.72 Mg2.5 O16 H'
_cod_database_code               9002664
Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T and 24R polysomes Note: Signs of x,y-coordinates of Fe7/Mg7 changed. Sample: 10T
Hejny, C.; Armbruster, T.; American Mineralogist 87 (2002) 277–292; doi:

data_9002665
_publ_section_title
;Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T and 24R
 polysomes Note: Signs of x,y-coordinates of Fe7/Mg7 changed. Sample: 10T
;
_journal_name_full               'American Mineralogist'
_journal_page_first              277
_journal_page_last               292
_journal_volume                  87
_journal_year                    2002
_chemical_formula_sum            'Al9 Fe2.89 H Mg1.61 O20 Ti0.5'
_chemical_name_mineral           Magnesiohogbomite-2N3S
_space_group_IT_number           164
_symmetry_space_group_name_Hall  '-P 3 2"'
_symmetry_space_group_name_H-M   'P -3 m 1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   5.722
_cell_length_b                   5.722
_cell_length_c                   23.026
_cell_formula_units_Z            2
_cell_volume                     652.897
_database_code_amcsd             0002754
_exptl_crystal_density_diffrn    4.010
_cod_original_formula_sum        'Al9 Fe2.89 Mg1.61 Ti.5 O20 H'
_cod_database_code               9002665
Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T and 24R polysomes Note: Data represents a model, not experiment. Sample: polytype 12H
Hejny, C.; Armbruster, T.; American Mineralogist 87 (2002) 277–292; doi:

data_9002666
_publ_section_title
;Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T and 24R
 polysomes Note: Data represents a model, not experiment. Sample: polytype 12H
;
_journal_name_full               'American Mineralogist'
_journal_page_first              277
_journal_page_last               292
_journal_volume                  87
_journal_year                    2002
_chemical_formula_sum            'Al12 H Mg4 O24 Ti'
_chemical_name_mineral           Hogbomite
_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                   5.7
_cell_length_b                   5.7
_cell_length_c                   27.6
_cell_formula_units_Z            2
_cell_volume                     776.586
_exptl_crystal_density_diffrn    3.652
_cod_original_formula_sum        'Mg4 Al12 Ti O24 H'
_cod_database_code               9002666
Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T and 24R polysomes Note: Data represents a model, not experiment. Sample: polytype 14T
Hejny, C.; Armbruster, T.; American Mineralogist 87 (2002) 277–292; doi:

data_9002667
_publ_section_title
;Polysomatism in hogbomite: The crystal structures of 10T, 12H, 14T and 24R
 polysomes Note: Data represents a model, not experiment. Sample: polytype 14T
;
_journal_name_full               'American Mineralogist'
_journal_page_first              277
_journal_page_last               292
_journal_volume                  87
_journal_year                    2002
_chemical_formula_sum            'Al14 H Mg5 O28 Ti'
_chemical_name_mineral           Hogbomite
_space_group_IT_number           164
_symmetry_space_group_name_Hall  '-P 3 2"'
_symmetry_space_group_name_H-M   'P -3 m 1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   5.7
_cell_length_b                   5.7
_cell_length_c                   32.2
_cell_formula_units_Z            2
_cell_volume                     906.017
_database_code_amcsd             0002756
_exptl_crystal_density_diffrn    3.651
_cod_original_formula_sum        'Al14 Mg5 Ti O28 H'
_cod_database_code               9002667
The crystal structure and cation ordering of phase-X - (K1-x-n)2(Mg1-n[Al,Cr]n)2Si2O7H2x: A potential K- and H-bearing phase in the mantle
Mancini, F.; Harlow, G. E.; Cahill, C. L.; American Mineralogist 87 (2002) 302–306; doi:

data_9002668
_publ_section_title
;
 The crystal structure and cation ordering of phase-X -
 (K1-x-n)2(Mg1-n[Al,Cr]n)2Si2O7H2x: A potential K- and H-bearing
 phase in the mantle
;
_journal_name_full               'American Mineralogist'
_journal_page_first              302
_journal_page_last               306
_journal_volume                  87
_journal_year                    2002
_chemical_formula_sum            'Al0.06 Cr0.02 K6 Mg1.84 O7 Si2'
_chemical_name_common            Phase-X
_chemical_name_mineral           Phase-X
_space_group_IT_number           185
_symmetry_space_group_name_Hall  'P 6c -2'
_symmetry_space_group_name_H-M   'P 63 c m'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   5.028
_cell_length_b                   5.028
_cell_length_c                   13.216
_cell_formula_units_Z            2
_cell_volume                     289.348
_database_code_amcsd             0002757
_exptl_crystal_density_diffrn    5.167
_cod_original_formula_sum        'Si2 Mg1.84 Al.06 Cr.02 K6 O7'
_cod_database_code               9002668