LMucko/crystallography-open-database huggingface dataset:
Mn-Mg distribution in a C2/m manganoan cummingtonite: Crystal-chemical considerations
Ghose, S.; Yang, H.; American Mineralogist 74 (1989) 1091–1096; doi:

data_9001239
_publ_section_title
;
 Mn-Mg distribution in a C2/m manganoan cummingtonite: Crystal-chemical
 considerations
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1091
_journal_page_last               1096
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Ca0.24 H2 Mg4.514 Mn2.246 O24 Si8'
_chemical_name_mineral           Cummingtonite
_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                 102.642
_cell_angle_gamma                90
_cell_length_a                   9.6045
_cell_length_b                   18.1244
_cell_length_c                   5.3251
_cell_formula_units_Z            2
_cell_volume                     904.498
_database_code_amcsd             0001266
_exptl_crystal_density_diffrn    3.133
_cod_original_formula_sum        'Mn2.246 Mg4.514 Ca.24 Si8 O24 H2'
_cod_database_code               9001239
Cation distribution in the octahedral sites of hornblendes sample I-P from Iratsu, Japan
Makino, K.; Tomita, K.; American Mineralogist 74 (1989) 1097–1105; doi:

data_9001240
_publ_section_title
;
 Cation distribution in the octahedral sites of hornblendes
 sample I-P from Iratsu, Japan
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1097
_journal_page_last               1105
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum
'Al1.8 Ca1.702 Fe1.771 H2 Mg3.343 Na3.384 O24 Si6.2'
_chemical_name_mineral           Pargasite
_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                 104.93
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.805
_cell_length_b                   17.96
_cell_length_c                   5.302
_cell_volume                     902.151
_database_code_amcsd             0001267
_exptl_crystal_density_diffrn    3.442
_cod_original_formula_sum
'(Si6.2 Al1.8) Mg3.343 Fe1.771 Ca1.702 Na3.384 O24 H2'
_cod_database_code               9001240
Cation distribution in the octahedral sites of hornblendes sample E-P from Einstodingen, Antarctica
Makino, K.; Tomita, K.; American Mineralogist 74 (1989) 1097–1105; doi:

data_9001241
_publ_section_title
;
 Cation distribution in the octahedral sites of hornblendes
 sample E-P from Einstodingen, Antarctica
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1097
_journal_page_last               1105
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum
'Al2.04 Ca1.99 Fe0.9 H2 Mg4.1 Na1.89 O24 Si5.96'
_chemical_name_mineral           Pargasite
_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                 105.42
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.900
_cell_length_b                   17.95
_cell_length_c                   5.311
_cell_volume                     909.817
_database_code_amcsd             0001268
_exptl_crystal_density_diffrn    3.218
_cod_original_formula_sum
'(Si5.96 Al2.04) (Mg4.1 Fe.9) Ca1.99 Na1.89 O24 H2'
_cod_database_code               9001241
Cation distribution in the octahedral sites of hornblendes sample O-H from Obira, Japan
Makino, K.; Tomita, K.; American Mineralogist 74 (1989) 1097–1105; doi:

data_9001242
_publ_section_title
;
 Cation distribution in the octahedral sites of hornblendes
 sample O-H from Obira, Japan
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1097
_journal_page_last               1105
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Al1.68 Ca2 Fe4.45 H2 Mg0.55 Na3.96 O24 Si6.32'
_chemical_name_mineral           Hastingsite
_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                 104.97
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.967
_cell_length_b                   18.269
_cell_length_c                   5.347
_cell_volume                     940.576
_database_code_amcsd             0001269
_exptl_crystal_density_diffrn    3.679
_cod_original_formula_sum
'Si6.32 Al1.68 (Mg.55 Fe4.45) Ca2 Na3.96 O24 H2'
_cod_database_code               9001242
Cation distribution in the octahedral sites of hornblendes sample P-P from Parau Island
Makino, K.; Tomita, K.; American Mineralogist 74 (1989) 1097–1105; doi:

data_9001243
_publ_section_title
;
 Cation distribution in the octahedral sites of hornblendes
 sample P-P from Parau Island
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1097
_journal_page_last               1105
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum
'Al2.04 Ca1.86 Fe1.31 H2 Mg3.83 Na2.28 O24 Si5.96'
_chemical_name_mineral           Pargasite
_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                 105.04
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.834
_cell_length_b                   18.01
_cell_length_c                   5.297
_cell_volume                     906.017
_database_code_amcsd             0001270
_exptl_crystal_density_diffrn    3.305
_cod_original_formula_sum
'(Si5.96 Al2.04) Mg3.83 Fe1.31 Ca1.86 Na2.28 O24 H2'
_cod_database_code               9001243
Cation distribution in the octahedral sites of hornblendes sample K-H from Kawanabe, Japan
Makino, K.; Tomita, K.; American Mineralogist 74 (1989) 1097–1105; doi:

data_9001244
_publ_section_title
;
 Cation distribution in the octahedral sites of hornblendes
 sample K-H from Kawanabe, Japan
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1097
_journal_page_last               1105
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum
'Al1.08 Ca1.7 Fe1.718 H2 Mg3.442 Na0.46 O24 Si6.92'
_chemical_name_mineral           Hornblende
_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                 104.70
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   9.829
_cell_length_b                   18.06
_cell_length_c                   5.304
_cell_volume                     910.704
_database_code_amcsd             0001271
_exptl_crystal_density_diffrn    3.165
_cod_original_formula_sum
'(Si6.92 Al1.08) Mg3.442 Fe1.718 Ca1.7 Na.46 O24 H2'
_cod_database_code               9001244
Structural variation in the dolomite-ankerite solid-solution series: An X-ray, Mossbauer, and TEM study sample BM 1931-294
Reeder, R. J.; Dollase, W. A.; American Mineralogist 74 (1989) 1159–1167; doi:

data_9001245
_publ_section_title
;Structural variation in the dolomite-ankerite solid-solution series: An
 X-ray, Mossbauer, and TEM study sample BM 1931-294
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1159
_journal_page_last               1167
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'C2 Ca0.997 Fe0.234 Mg0.769 O6'
_chemical_name_mineral           Dolomite
_space_group_IT_number           148
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   4.8116
_cell_length_b                   4.8116
_cell_length_c                   16.0421
_cell_formula_units_Z            3
_cell_volume                     321.641
_database_code_amcsd             0001272
_exptl_crystal_density_diffrn    2.970
_cod_original_sg_symbol_H-M      'R -3'
_cod_original_formula_sum        'Ca.997 Fe.234 Mg.769 C2 O6'
_cod_database_code               9001245
Structural variation in the dolomite-ankerite solid-solution series: An X-ray, Mossbauer, and TEM study sample AMNH 6376
Reeder, R. J.; Dollase, W. A.; American Mineralogist 74 (1989) 1159–1167; doi:

data_9001246
_publ_section_title
;Structural variation in the dolomite-ankerite solid-solution series: An
 X-ray, Mossbauer, and TEM study sample AMNH 6376
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1159
_journal_page_last               1167
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'C2 Ca1.007 Fe0.542 Mg0.451 O6'
_chemical_name_mineral           Ankerite
_space_group_IT_number           148
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   4.8240
_cell_length_b                   4.8240
_cell_length_c                   16.1217
_cell_formula_units_Z            3
_cell_volume                     324.905
_database_code_amcsd             0001273
_exptl_crystal_density_diffrn    3.091
_cod_original_sg_symbol_H-M      'R -3'
_cod_original_formula_sum        'Ca1.007 Fe.542 Mg.451 C2 O6'
_cod_database_code               9001246
Structural variation in the dolomite-ankerite solid-solution series: An X-ray, Mossbauer, and TEM study sample AMNH 8059
Reeder, R. J.; Dollase, W. A.; American Mineralogist 74 (1989) 1159–1167; doi:

data_9001247
_publ_section_title
;Structural variation in the dolomite-ankerite solid-solution series: An
 X-ray, Mossbauer, and TEM study sample AMNH 8059
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1159
_journal_page_last               1167
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'C2 Ca0.997 Fe0.73 Mg0.273 O6'
_chemical_name_mineral           Ankerite
_space_group_IT_number           148
_symmetry_space_group_name_Hall  '-R 3'
_symmetry_space_group_name_H-M   'R -3 :H'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                120
_cell_length_a                   4.8312
_cell_length_b                   4.8312
_cell_length_c                   16.1663
_cell_formula_units_Z            3
_cell_volume                     326.777
_database_code_amcsd             0001274
_exptl_crystal_density_diffrn    3.161
_cod_original_sg_symbol_H-M      'R -3'
_cod_original_formula_sum        'Ca.997 Fe.73 Mg.273 C2 O6'
_cod_database_code               9001247
Crystal chemistry and crystallography of some minerals within the pyrite group
Bayliss, P.; American Mineralogist 74 (1989) 1168–1176; doi:

data_9001248
_publ_section_title
;Crystal chemistry and crystallography of some minerals within the pyrite
 group
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1168
_journal_page_last               1176
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Ir S Sb'
_chemical_name_mineral           Tolovkite
_space_group_IT_number           29
_symmetry_space_group_name_Hall  'P 2c -2ac'
_symmetry_space_group_name_H-M   'P c a 21'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   6.025
_cell_length_b                   6.025
_cell_length_c                   6.025
_cell_formula_units_Z            4
_cell_volume                     218.711
_database_code_amcsd             0001275
_exptl_crystal_density_diffrn    10.509
_cod_original_formula_sum        'Ir Sb S'
_cod_database_code               9001248
Crystal chemistry and crystallography of some minerals within the pyrite group
Bayliss, P.; American Mineralogist 74 (1989) 1168–1176; doi:

data_9001249
_publ_section_title
;Crystal chemistry and crystallography of some minerals within the pyrite
 group
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1168
_journal_page_last               1176
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Cu0.7 Fe0.3 S2'
_chemical_name_mineral           Fukuchilite
_space_group_IT_number           205
_symmetry_space_group_name_Hall  '-P 2ac 2ab 3'
_symmetry_space_group_name_H-M   'P a -3'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   5.585
_cell_length_b                   5.585
_cell_length_c                   5.585
_cell_formula_units_Z            4
_cell_volume                     174.209
_database_code_amcsd             0001276
_exptl_crystal_density_diffrn    4.780
_cod_original_sg_symbol_H-M      'P a 3'
_cod_original_formula_sum        '(Cu.7 Fe.3) S2'
_cod_database_code               9001249
Renierite crystal structure refined from Rietveld analysis of powder neutron-diffrection data
Bernstein, L. R.; Reichel, D. G.; Merlino, S.; American Mineralogist 74 (1989) 1177–1181; doi:

data_9001250
_publ_section_title
;
 Renierite crystal structure refined from Rietveld analysis of powder
 neutron-diffrection data
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1177
_journal_page_last               1181
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Cu9.36 Fe3.56 Ge1.62 S16 Zn'
_chemical_name_mineral           Renierite
_space_group_IT_number           112
_symmetry_space_group_name_Hall  'P -4 2c'
_symmetry_space_group_name_H-M   'P -4 2 c'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   10.6226
_cell_length_b                   10.6226
_cell_length_c                   10.5506
_cell_formula_units_Z            2
_cell_volume                     1190.526
_database_code_amcsd             0001278
_exptl_crystal_density_diffrn    4.156
_cod_original_formula_sum        'Cu9.36 Zn Ge1.62 Fe3.56 S16'
_cod_database_code               9001250
Magnetoplumbite, PbFe12O19: Refinement and lone-pair splitting Note: Symmetry constraints on U(i,j) for Fe5, O4 and O5 were incorrect, and likely were refined wrong. They have been replaced with their isotropic equivalents.
Moore, P. B.; Sen Gupta, P. K.; Le Page, Y.; American Mineralogist 74 (1989) 1186–1194; doi:

data_9001251
_publ_section_title
;
 Magnetoplumbite, PbFe12O19: Refinement and lone-pair splitting
 Note: Symmetry constraints on U(i,j) for Fe5, O4  and O5 were incorrect,
 and likely were refined wrong.
 They have been replaced with their isotropic equivalents.
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1186
_journal_page_last               1194
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Fe12 O19 Pb1.002'
_chemical_name_mineral           Magnetoplumbite
_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                   5.873
_cell_length_b                   5.873
_cell_length_c                   23.007
_cell_formula_units_Z            2
_cell_volume                     687.243
_database_code_amcsd             0001279
_exptl_crystal_density_diffrn    5.711
_cod_original_formula_sum        'Pb1.002 Fe12 O19'
_cod_database_code               9001251
Crystal structure of pahasapaite, a beryllophosphate mineral with a distorted zeolite rho framework
Rouse, R. C.; Peacor, D. R.; Merlino, S.; American Mineralogist 74 (1989) 1195–1202; doi:

data_9001252
_publ_section_title
;Crystal structure of pahasapaite, a beryllophosphate mineral with a distorted
 zeolite rho framework
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1195
_journal_page_last               1202
_journal_volume                  74
_journal_year                    1989
_chemical_compound_source        'Tip Top mine, Custer, South Dakota, USA'
_chemical_formula_sum            'Be6 Ca1.374 H34 K0.3 Li2.9 Na0.048 O33.5 P6'
_chemical_name_mineral           Pahasapaite
_space_group_IT_number           197
_symmetry_space_group_name_Hall  'I 2 2 3'
_symmetry_space_group_name_H-M   'I 2 3'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   13.781
_cell_length_b                   13.781
_cell_length_c                   13.781
_cell_volume                     2617.232
_database_code_amcsd             0001280
_exptl_crystal_density_diffrn    2.279
_cod_original_formula_sum        'Ca1.374 Li2.9 K.3 Na.048 P6 Be6 O33.5 H34'
_cod_database_code               9001252
Crystal-structure analysis of a birefringent andradite
Kingma, K. J.; Downs, J. W.; American Mineralogist 74 (1989) 1307–1316; doi:

data_9001253
_publ_section_title
;
 Crystal-structure analysis of a birefringent andradite
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1307
_journal_page_last               1316
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Ca3 Fe1.885 O12 Si3'
_chemical_name_mineral           Andradite
_space_group_IT_number           2
_symmetry_space_group_name_Hall
'-P 1 (-1/2*x+1/2*y+1/2*z,1/2*x-1/2*y+1/2*z,1/2*x+1/2*y-1/2*z)'
_symmetry_space_group_name_H-M   'I -1'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_length_a                   12.048
_cell_length_b                   12.048
_cell_length_c                   12.048
_cell_formula_units_Z            8
_cell_volume                     1748.819
_database_code_amcsd             0001281
_exptl_crystal_density_diffrn    3.811
_cod_original_formula_sum        'Ca3 Fe1.885 Si3 O12'
_cod_database_code               9001253
Sverigeite, a structure containing planar NaO4 groups and chains of 3- and 4-membered beryllosilicate rings
Rouse, R. C.; Peacor, D. R.; Metz, G. W.; American Mineralogist 74 (1989) 1343–1350; doi:

data_9001254
_publ_section_title
;
 Sverigeite, a structure containing planar NaO4 groups and chains of 3- and
 4-membered beryllosilicate rings
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1343
_journal_page_last               1350
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'Be2 H Mg0.63 Mn1.37 Na O13 Si3 Sn'
_chemical_name_mineral           Sverigeite
_space_group_IT_number           74
_symmetry_space_group_name_Hall  '-I 2b 2'
_symmetry_space_group_name_H-M   'I m m a'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   10.815
_cell_length_b                   13.273
_cell_length_c                   6.818
_cell_volume                     978.707
_database_code_amcsd             0001282
_exptl_crystal_density_diffrn    3.689
_cod_original_formula_sum        'Sn (Mn1.37 Mg.63) Na Si3 Be2 O13 H'
_cod_database_code               9001254
Crystal structure of wiserite
Pertlik, F.; Dunn, P. J.; American Mineralogist 74 (1989) 1351–1354; doi:

data_9001255
_publ_section_title
;
 Crystal structure of wiserite
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1351
_journal_page_last               1354
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'B8 Cl0.8 H8 Mg0.5 Mn14 O32 Si0.5'
_chemical_name_mineral           Wiserite
_space_group_IT_number           85
_symmetry_space_group_name_Hall  '-P 4a'
_symmetry_space_group_name_H-M   'P 4/n :2'
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            2
_cell_length_a                   20.192
_cell_length_b                   20.192
_cell_length_c                   3.281
_cell_volume                     1337.719
_database_code_amcsd             0001283
_exptl_crystal_density_diffrn    3.551
_cod_original_sg_symbol_H-M      'P 4/n'
_cod_original_formula_sum        'Mn14 B8 (O32 Mg.5) Si.5 Cl.8 H8'
_cod_database_code               9001255
Sclarite, a new mineral from Franklin, New Jersey, with essential octahedrally and tetrahedrally coordinated zinc: Description and structure refinement
Grice, J. D.; Dunn, P. J.; American Mineralogist 74 (1989) 1355–1359; doi:

data_9001256
_publ_section_title
;Sclarite, a new mineral from Franklin, New Jersey, with essential
 octahedrally and tetrahedrally coordinated zinc: Description and structure
 refinement
;
_journal_name_full               'American Mineralogist'
_journal_page_first              1355
_journal_page_last               1359
_journal_volume                  74
_journal_year                    1989
_chemical_formula_sum            'C2 H10 O16 Zn7'
_chemical_name_mineral           Sclarite
_space_group_IT_number           15
_symmetry_space_group_name_Hall  '-A 2ya'
_symmetry_space_group_name_H-M   'A 1 2/a 1'
_cell_angle_alpha                90
_cell_angle_beta                 95.490
_cell_angle_gamma                90
_cell_length_a                   16.110
_cell_length_b                   5.432
_cell_length_c                   15.041
_cell_formula_units_Z            4
_cell_volume                     1310.193
_database_code_amcsd             0001284
_exptl_crystal_density_diffrn    3.791
_cod_original_formula_sum        'Zn7 C2 O16 H10'
_cod_database_code               9001256
Variation of displacement parameters in structure refinements of low albite Note: this sample of feldspar is from Roc Tourne, France
Armbruster, T.; Burgi, H. B.; Kunz, M.; Gnos, E.; Bronnimann, S.; Lienert, C.; American Mineralogist 75 (1990) 135–140; doi:

data_9001257
_publ_section_title
;
 Variation of displacement parameters in structure refinements of low albite
 Note: this sample of feldspar is from Roc Tourne, France
;
_journal_name_full               'American Mineralogist'
_journal_page_first              135
_journal_page_last               140
_journal_volume                  75
_journal_year                    1990
_chemical_compound_source        'Roc Tourne, France'
_chemical_formula_sum            'Al Na O8 Si3'
_chemical_name_mineral           Albite
_space_group_IT_number           2
_symmetry_space_group_name_Hall  '-P 1 (1/2*x+1/2*y,1/2*x-1/2*y,-z)'
_symmetry_space_group_name_H-M   'C -1'
_cell_angle_alpha                94.26
_cell_angle_beta                 116.60
_cell_angle_gamma                87.71
_cell_formula_units_Z            4
_cell_length_a                   8.137
_cell_length_b                   12.785
_cell_length_c                   7.1583
_cell_volume                     664.008
_database_code_amcsd             0001285
_exptl_crystal_density_diffrn    2.623
_cod_depositor_comments
;
 Adding the _cell_formula_units_Z data item.

 Antanas Vaitkus,
 2017-10-06

 Adding the _atom_site_type_symbol data item.

 Antanas Vaitkus,
 2017-10-06
;
_cod_original_formula_sum        'Al Si3 Na O8'
_cod_database_code               9001257