data_global _chemical_name_mineral 'Boussingaultite' loop_ _publ_author_name 'Montgomery H' 'Lingafelter E C' _journal_name_full 'Acta Crystallographica' _journal_volume 17 _journal_year 1964 _journal_page_first 1478 _journal_page_last 1479 _publ_section_title ; The crystal structure of Tutton's salts. II. Magnesium ammonium sulfate hexahydrate and nickel ammonium sulfate hexahydrate ; _database_code_amcsd 0020241 _chemical_compound_source 'Synthetic' _chemical_formula_sum 'N2 H20 Mg S2 O14' _cell_length_a 9.383 _cell_length_b 12.669 _cell_length_c 6.220 _cell_angle_alpha 90 _cell_angle_beta 107.05 _cell_angle_gamma 90 _cell_volume 706.895 _exptl_crystal_density_diffrn 1.694 _symmetry_space_group_name_H-M 'P 1 21/a 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z N1 0.13210 0.35090 0.36110 H1 0.05800 0.33700 0.22500 H2 0.20800 0.30500 0.39400 H3 0.09500 0.34400 0.48700 Mg 0.00000 0.00000 0.00000 S 0.09530 -0.36050 0.25750 O1 -0.04690 -0.41740 0.21160 O2 0.21850 -0.43280 0.37180 O3 0.11850 -0.32110 0.04560 O4 0.09510 -0.27020 0.40890 O5 0.16030 -0.10940 -0.03070 O6 0.16850 0.10420 0.16560 O7 -0.00170 -0.06870 0.29860 H4 0.17400 0.42100 0.34600 H5 0.20000 0.09100 0.31700 H6 0.22700 0.13400 0.11600 H7 -0.25200 0.09600 -0.05900 H8 -0.14300 0.17600 0.00800 H9 -0.09700 -0.06600 0.34100 H10 0.02700 -0.13500 0.32500