LMucko/crystallography-open-database huggingface dataset:
In situ study of the goethite-hematite phase transformation by real time synchrotron powder diffraction Sample at T = 517 C
Gualtieri, A.; Venturelli, P.; American Mineralogist 84 (1999) 895–904; doi:

data_9002161
_publ_section_title
;
 In situ study of the goethite-hematite phase transformation by real time
 synchrotron powder diffraction
 Sample at T = 517 C
;
_journal_name_full               'American Mineralogist'
_journal_page_first              895
_journal_page_last               904
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Fe1.9 H0.06 O3'
_chemical_name_mineral           Hematite-proto
_space_group_crystal_system      trigonal
_space_group_IT_number           167
_space_group_name_Hall           '-R 3 2"c'
_space_group_name_H-M_alt        'R -3 c :H'
_symmetry_space_group_name_H-M   'R -3 c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            6
_cell_length_a                   5.0258
_cell_length_b                   5.0258
_cell_length_c                   13.709
_cell_volume                     299.880
_database_code_amcsd             0002229
_diffrn_ambient_temperature      790.15
_exptl_crystal_density_diffrn    5.122
_cod_original_sg_symbol_H-M      'R -3 c'
_cod_original_formula_sum        'Fe1.9 H.06 O3'
_cod_database_code               9002161
In situ study of the goethite-hematite phase transformation by real time synchrotron powder diffraction Sample at T = 779 C
Gualtieri, A.; Venturelli, P.; American Mineralogist 84 (1999) 895–904; doi:

data_9002162
_publ_section_title
;
 In situ study of the goethite-hematite phase transformation by real time
 synchrotron powder diffraction
 Sample at T = 779 C
;
_journal_name_full               'American Mineralogist'
_journal_page_first              895
_journal_page_last               904
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Fe1.9 H0.06 O3'
_chemical_name_mineral           Hematite-proto
_space_group_crystal_system      trigonal
_space_group_IT_number           167
_space_group_name_Hall           '-R 3 2"c'
_space_group_name_H-M_alt        'R -3 c :H'
_symmetry_space_group_name_H-M   'R -3 c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_formula_units_Z            6
_cell_length_a                   5.041
_cell_length_b                   5.041
_cell_length_c                   13.7251
_cell_volume                     302.050
_database_code_amcsd             0002230
_diffrn_ambient_temperature      1052.15
_exptl_crystal_density_diffrn    5.085
_cod_original_sg_symbol_H-M      'R -3 c'
_cod_original_formula_sum        'Fe1.9 H.06 O3'
_cod_database_code               9002162
In situ powder neutron diffraction of cation partitioning vs. pressure in Mg0.94Al2.04O4 synthetic spinel Sample at P = 0.0 kbar
Pavese, A.; Artioli, G.; Hull, S.; American Mineralogist 84 (1999) 905–912; doi:

data_9002163
_publ_section_title
;
 In situ powder neutron diffraction of cation partitioning vs. pressure in
 Mg0.94Al2.04O4 synthetic spinel
 Sample at P = 0.0 kbar
;
_journal_name_full               'American Mineralogist'
_journal_page_first              905
_journal_page_last               912
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Al2.041 Mg0.939 O4'
_chemical_name_mineral           Spinel
_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                   8.0704
_cell_length_b                   8.0704
_cell_length_c                   8.0704
_cell_volume                     525.636
_database_code_amcsd             0002231
_diffrn_ambient_pressure         0
_exptl_crystal_density_diffrn    3.586
_cod_original_sg_symbol_H-M      'F d 3 m'
_cod_original_formula_sum        'Mg.939 Al2.041 O4'
_cod_database_code               9002163
In situ powder neutron diffraction of cation partitioning vs. pressure in Mg0.94Al2.04O4 synthetic spinel Sample at P = 0.7 kbar
Pavese, A.; Artioli, G.; Hull, S.; American Mineralogist 84 (1999) 905–912; doi:

data_9002164
_publ_section_title
;
 In situ powder neutron diffraction of cation partitioning vs. pressure in
 Mg0.94Al2.04O4 synthetic spinel
 Sample at P = 0.7 kbar
;
_journal_name_full               'American Mineralogist'
_journal_page_first              905
_journal_page_last               912
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Al2.041 Mg0.939 O4'
_chemical_name_mineral           Spinel
_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                   8.0694
_cell_length_b                   8.0694
_cell_length_c                   8.0694
_cell_volume                     525.441
_database_code_amcsd             0002232
_diffrn_ambient_pressure         70000
_exptl_crystal_density_diffrn    3.587
_cod_original_sg_symbol_H-M      'F d 3 m'
_cod_original_formula_sum        'Mg.939 Al2.041 O4'
_cod_database_code               9002164
In situ powder neutron diffraction of cation partitioning vs. pressure in Mg0.94Al2.04O4 synthetic spinel Sample at P = 6.3 kbar
Pavese, A.; Artioli, G.; Hull, S.; American Mineralogist 84 (1999) 905–912; doi:

data_9002165
_publ_section_title
;
 In situ powder neutron diffraction of cation partitioning vs. pressure in
 Mg0.94Al2.04O4 synthetic spinel
 Sample at P = 6.3 kbar
;
_journal_name_full               'American Mineralogist'
_journal_page_first              905
_journal_page_last               912
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Al2.041 Mg0.939 O4'
_chemical_name_mineral           Spinel
_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                   8.0616
_cell_length_b                   8.0616
_cell_length_c                   8.0616
_cell_volume                     523.919
_database_code_amcsd             0002233
_diffrn_ambient_pressure         6.3e+05
_exptl_crystal_density_diffrn    3.597
_cod_original_cell_volume        523.918
_cod_original_sg_symbol_H-M      'F d 3 m'
_cod_original_formula_sum        'Mg.939 Al2.041 O4'
_cod_database_code               9002165
In situ powder neutron diffraction of cation partitioning vs. pressure in Mg0.94Al2.04O4 synthetic spinel Sample at P = 18.2 kbar
Pavese, A.; Artioli, G.; Hull, S.; American Mineralogist 84 (1999) 905–912; doi:

data_9002166
_publ_section_title
;
 In situ powder neutron diffraction of cation partitioning vs. pressure in
 Mg0.94Al2.04O4 synthetic spinel
 Sample at P = 18.2 kbar
;
_journal_name_full               'American Mineralogist'
_journal_page_first              905
_journal_page_last               912
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Al2.041 Mg0.939 O4'
_chemical_name_mineral           Spinel
_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                   8.0452
_cell_length_b                   8.0452
_cell_length_c                   8.0452
_cell_volume                     520.728
_database_code_amcsd             0002234
_diffrn_ambient_pressure         1.82e+06
_exptl_crystal_density_diffrn    3.619
_cod_original_sg_symbol_H-M      'F d 3 m'
_cod_original_formula_sum        'Mg.939 Al2.041 O4'
_cod_database_code               9002166
In situ powder neutron diffraction of cation partitioning vs. pressure in Mg0.94Al2.04O4 synthetic spinel Sample at P = 26.5 kbar
Pavese, A.; Artioli, G.; Hull, S.; American Mineralogist 84 (1999) 905–912; doi:

data_9002167
_publ_section_title
;
 In situ powder neutron diffraction of cation partitioning vs. pressure in
 Mg0.94Al2.04O4 synthetic spinel
 Sample at P = 26.5 kbar
;
_journal_name_full               'American Mineralogist'
_journal_page_first              905
_journal_page_last               912
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Al2.039 Mg0.94 O4'
_chemical_name_mineral           Spinel
_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                   8.0339
_cell_length_b                   8.0339
_cell_length_c                   8.0339
_cell_volume                     518.536
_database_code_amcsd             0002235
_diffrn_ambient_pressure         2.65e+06
_exptl_crystal_density_diffrn    3.634
_cod_original_sg_symbol_H-M      'F d 3 m'
_cod_original_formula_sum        'Mg.94 Al2.039 O4'
_cod_database_code               9002167
In situ powder neutron diffraction of cation partitioning vs. pressure in Mg0.94Al2.04O4 synthetic spinel Sample at P = 38.1 kbar
Pavese, A.; Artioli, G.; Hull, S.; American Mineralogist 84 (1999) 905–912; doi:

data_9002168
_publ_section_title
;
 In situ powder neutron diffraction of cation partitioning vs. pressure in
 Mg0.94Al2.04O4 synthetic spinel
 Sample at P = 38.1 kbar
;
_journal_name_full               'American Mineralogist'
_journal_page_first              905
_journal_page_last               912
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum            'Al2.041 Mg0.939 O4'
_chemical_name_mineral           Spinel
_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                   8.0187
_cell_length_b                   8.0187
_cell_length_c                   8.0187
_cell_volume                     515.599
_database_code_amcsd             0002236
_diffrn_ambient_pressure         3.81e+06
_exptl_crystal_density_diffrn    3.655
_cod_original_sg_symbol_H-M      'F d 3 m'
_cod_original_formula_sum        'Mg.939 Al2.041 O4'
_cod_database_code               9002168
Crystal structure of non-metamict Th-rich hellandite-(Ce) from Latium (Italy) and crystal chemistry of the hellandite-group minerals
Oberti, R.; Ottolini, L.; Camara, F.; Della Ventura, G.; American Mineralogist 84 (1999) 913–921; doi:

data_9002169
_publ_section_title
;Crystal structure of non-metamict Th-rich hellandite-(Ce) from Latium (Italy)
 and crystal chemistry of the hellandite-group minerals
;
_journal_name_full               'American Mineralogist'
_journal_page_first              913
_journal_page_last               921
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum
;Al0.83 B4 Be0.74 Ca4.2 Ce0.66 F0.5 Fe0.65 H0.5 La0.3 Li0.24 Mg0.11 Nd0.24
 O23.5 Pr0.06 Si4 Th0.36 Ti0.41 U0.06 Y0.12
;
_chemical_name_mineral           Hellandite-(Ce)
_space_group_IT_number           13
_symmetry_space_group_name_Hall  '-P 2ya'
_symmetry_space_group_name_H-M   'P 1 2/a 1'
_cell_angle_alpha                90
_cell_angle_beta                 111.18
_cell_angle_gamma                90
_cell_length_a                   19.068
_cell_length_b                   4.745
_cell_length_c                   10.289
_cell_formula_units_Z            2
_cell_volume                     868.041
_database_code_amcsd             0002237
_exptl_crystal_density_diffrn    4.151
_cod_original_formula_sum
;B4 Si4 (Al.83 Fe.65 Ti.41 Mg.11) (Ca4.2 Th.36 U.06 Y.12 La.3 Ce.66 Pr.06
 Nd.24) Be.74 Li.24 H.5 O23.5 F.5
;
_cod_database_code               9002169
Linking structure and chemistry in the schorl-dravite series Sample 108749
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002170
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample 108749
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_compound_source        Madagascar
_chemical_formula_sum
;Al7.014 B3 Ca0.1 F0.302 Fe1.233 H3.465 K0.043 Li0.006 Mg0.846 Na0.711 O30.698
 Si5.832 Ti0.048 V0.006 Zn0.006
;
_chemical_name_mineral           Schorl
_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_formula_units_Z            3
_cell_length_a                   15.939
_cell_length_b                   15.939
_cell_length_c                   7.146
_cell_volume                     1572.229
_database_code_amcsd             0002238
_exptl_crystal_density_diffrn    3.170
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.1 Na.711 K.043 Al7.014 Mg.846 Fe1.233 Ti.048 V.006 Li.006 Zn.006 Si5.832
 B3 O30.698 F.302 H3.465
;
_cod_database_code               9002170
Linking structure and chemistry in the schorl-dravite series Sample DLux1
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002171
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample DLux1
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_compound_source
'Sebago Granite, North Windham, Oxford County, Maine, USA'
_chemical_formula_sum
;Al6.576 B3 Ca0.031 F0.355 Fe1.764 H3.2 K0.03 Li0.021 Mg0.528 Mn0.015 Na0.608
 O30.645 Si6 Ti0.081
;
_chemical_name_mineral           Schorl
_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_formula_units_Z            3
_cell_length_a                   15.963
_cell_length_b                   15.963
_cell_length_c                   7.154
_cell_volume                     1578.733
_database_code_amcsd             0002239
_exptl_crystal_density_diffrn    3.191
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.031 Na.608 K.03 Al6.576 Fe1.764 Ti.081 Li.021 Mn.015 Mg.528 Si6 B3 O30.645
 F.355 H3.2
;
_cod_database_code               9002171
Linking structure and chemistry in the schorl-dravite series Sample LCW2356
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002172
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample LCW2356
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_compound_source
'Dunton mine, Newry, Oxford County, Maine, USA'
_chemical_formula_sum
;Al6.072 B3 Ca0.37 Cr0.009 F0.134 Fe0.549 H3.018 K0.027 Li0.006 Mg2.538
 Na0.418 O30.866 Si6 Ti0.036 V0.009
;
_chemical_name_mineral           Dravite
_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_formula_units_Z            3
_cell_length_a                   15.915
_cell_length_b                   15.915
_cell_length_c                   7.187
_cell_volume                     1576.491
_database_code_amcsd             0002240
_exptl_crystal_density_diffrn    3.112
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.37 Na.418 K.027 Al6.072 Mg2.538 Fe.549 Ti.036 V.009 Li.006 Cr.009 Si6 B3
 O30.866 F.134 H3.018
;
_cod_database_code               9002172
Linking structure and chemistry in the schorl-dravite series Sample HP2-1
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002173
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample HP2-1
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_compound_source
'Harney Peak Granite, Custer County, South Dakota, USA'
_chemical_formula_sum
;Al6.639 B3 Ca0.027 F0.204 Fe1.671 H3.396 K0.025 Mg0.636 Mn0.012 Na0.54
 O30.796 Si6 Ti0.009 V0.006 Zn0.006
;
_chemical_name_mineral           Schorl
_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_formula_units_Z            3
_cell_length_a                   15.946
_cell_length_b                   15.946
_cell_length_c                   7.157
_cell_volume                     1576.032
_database_code_amcsd             0002241
_exptl_crystal_density_diffrn    3.177
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.027 Na.54 K.025 Al6.639 Mg.636 Fe1.671 Ti.009 V.006 Mn.012 Zn.006 Si6 B3
 O30.796 F.204 H3.396
;
_cod_database_code               9002173
Linking structure and chemistry in the schorl-dravite series Sample O-T16-92
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002174
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample O-T16-92
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum
;Al6.516 B3 Ca0.156 Cr0.009 F0.06 Fe1.029 H3.094 K0.015 Mg1.359 Mn0.006
 Na0.348 O30.94 Si6 Ti0.069 V0.006
;
_chemical_name_mineral           Dravite
_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_formula_units_Z            3
_cell_length_a                   15.935
_cell_length_b                   15.935
_cell_length_c                   7.160
_cell_volume                     1574.519
_exptl_crystal_density_diffrn    3.119
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.156 Na.348 K.015 Al6.516 Mg1.359 Fe1.029 Ti.069 V.006 Cr.009 Mn.006 Si6 B3
 O30.94 F.06 H3.094
;
_cod_database_code               9002174
Linking structure and chemistry in the schorl-dravite series Sample SmFalls
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002175
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample SmFalls
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum
;Al6.567 B3 Ca0.016 F0.301 Fe1.05 H3.234 K0.015 Li0.006 Mg1.305 Mn0.018
 Na0.684 O30.699 Si6 Ti0.024 V0.006
;
_chemical_name_mineral           Dravite
_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_formula_units_Z            3
_cell_length_a                   15.934
_cell_length_b                   15.934
_cell_length_c                   7.167
_cell_volume                     1575.860
_exptl_crystal_density_diffrn    3.124
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.016 Na.684 K.015 Al6.567 Mg1.305 Fe1.05 Ti.024 V.006 Li.006 Mn.018 Si6 B3
 O30.699 F.301 H3.234
;
_cod_database_code               9002175
Linking structure and chemistry in the schorl-dravite series Sample Ru-T17-92
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002176
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample Ru-T17-92
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum
;Al6.606 B3 Ca0.017 F0.106 Fe1.047 H3.041 K0.04 Mg1.242 Na0.533 O30.894 Si6
 Ti0.084 V0.015
;
_chemical_name_mineral           Dravite
_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_formula_units_Z            3
_cell_length_a                   15.935
_cell_length_b                   15.935
_cell_length_c                   7.164
_cell_volume                     1575.398
_exptl_crystal_density_diffrn    3.119
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.017 Na.533 K.04 Al6.606 Mg1.242 Fe1.047 Ti.084 V.015 Si6 B3 O30.894 F.106
 H3.041
;
_cod_database_code               9002176
Linking structure and chemistry in the schorl-dravite series Sample Ru-T18-92
Bloodaxe, E. S.; Hughes, J. M.; Dyar, M. D.; Grew, E. S.; Guidotti, C. V.; American Mineralogist 84 (1999) 922–928; doi:

data_9002177
_publ_section_title
;
 Linking structure and chemistry in the schorl-dravite series
 Sample Ru-T18-92
;
_journal_name_full               'American Mineralogist'
_journal_page_first              922
_journal_page_last               928
_journal_volume                  84
_journal_year                    1999
_chemical_formula_sum
;Al6.318 B3 Ca0.061 Cr0.006 F0.331 Fe0.789 H2.682 K0.031 Li0.006 Mg1.734
 Mn0.006 Na0.626 O30.669 Si6 Ti0.123 V0.009
;
_chemical_name_mineral           Dravite
_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_formula_units_Z            3
_cell_length_a                   15.945
_cell_length_b                   15.945
_cell_length_c                   7.169
_cell_volume                     1578.477
_exptl_crystal_density_diffrn    3.100
_cod_original_sg_symbol_H-M      'R 3 m'
_cod_original_formula_sum
;Ca.061 Na.626 K.031 Al6.318 Mg1.734 Fe.789 Ti.123 V.009 Li.006 Cr.006 Mn.006
 Si6 B3 O30.669 F.331 H2.682
;
_cod_database_code               9002177