data_1010439
_chemical_name_systematic          'Ice'
_chemical_name_mineral             'Ice'
_chemical_compound_source          'I'
_chemical_formula_structural       'H2 O'
_chemical_formula_sum              'H2 O'
_publ_section_title                'The Crystal Structure of Ice'
_publ_author_name                  'John, A S'
_journal_name_full
;
Proceedings of the National Academy of Sciences, U.S.A.
;
_journal_coden_ASTM                PNASA6
_journal_volume                    4
_journal_year                      1918
_journal_page_first                193
_journal_page_last                 197
_cell_length_a                     4.74
_cell_length_b                     4.74
_cell_length_c                     6.65
_cell_angle_alpha                  90
_cell_angle_beta                   90
_cell_angle_gamma                  120
_cell_volume                       129.4
_cell_formula_units_Z              4