data_global _chemical_name_mineral 'Borax' loop_ _publ_author_name 'Morimoto N' _journal_name_full 'Mineralogical Journal' _journal_volume 2 _journal_year 1956 _journal_page_first 1 _journal_page_last 18 _publ_section_title ; The crystal structure of borax ; _database_code_amcsd 0019358 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'Na2 B4 O17 H20' _cell_length_a 11.858 _cell_length_b 10.674 _cell_length_c 12.197 _cell_angle_alpha 90 _cell_angle_beta 106.68 _cell_angle_gamma 90 _cell_volume 1478.843 _exptl_crystal_density_diffrn 1.713 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Na1 0.00000 0.00000 0.00000 0.02026 Na2 0.00000 0.84500 0.25000 0.02026 B1 0.08500 0.34500 0.21700 0.02026 B2 0.09500 0.45400 0.39000 0.02026 O1 0.00000 0.26500 0.25000 0.02026 O2 0.15400 0.41900 0.31400 0.02026 O3 0.01800 0.43500 0.12300 0.02026 O-H4 0.16100 0.26900 0.16700 0.02026 O-H5 0.16300 0.51100 0.49100 0.02026 Wat6 0.12300 0.84600 0.45000 0.02026 Wat7 0.12500 0.00200 0.19600 0.02026 Wat8 0.11900 0.16500 0.45900 0.02026 Wat9 0.11600 0.70700 0.17100 0.02026