data_global _chemical_name_mineral 'Nordstrandite' loop_ _publ_author_name 'Saalfeld H' 'Jarchow O' _journal_name_full 'Neues Jahrbuch fur Mineralogie, Abhandlungen' _journal_volume 109 _journal_year 1968 _journal_page_first 185 _journal_page_last 191 _publ_section_title ; Die Kristallstruktur von Nordstrandit, Al(OH)3 ; _database_code_amcsd 0014701 _chemical_formula_sum 'Al (O3 H3)' _cell_length_a 8.752 _cell_length_b 5.069 _cell_length_c 10.244 _cell_angle_alpha 109.33 _cell_angle_beta 97.66 _cell_angle_gamma 88.34 _cell_volume 424.962 _exptl_crystal_density_diffrn 2.438 _symmetry_space_group_name_H-M 'I -1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-x,-y,-z' '1/2-x,1/2-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Al1 0.16730 0.50450 0.00170 0.01013 Al2 0.33110 -0.01480 0.00100 0.01013 O-H1 0.17990 0.13500 -0.11530 0.00519 O-H2 0.66160 0.59230 -0.09940 0.01013 O-H3 0.49080 0.04670 -0.11340 0.01229 O-H4 0.97410 0.57310 -0.09930 0.01140 O-H5 0.29200 0.62090 -0.11510 0.01077 O-H6 0.81430 0.09490 -0.09350 0.01938