data_global _chemical_name_mineral 'Celestine' loop_ _publ_author_name 'Hawthorne F C' 'Ferguson R B' _journal_name_full 'The Canadian Mineralogist' _journal_volume 13 _journal_year 1975 _journal_page_first 181 _journal_page_last 187 _publ_section_title ; Anhydrous sulphates. I: Refinement of the crystal structure of celestite with an appendix on the structure of thenardite ; _database_code_amcsd 0005112 _chemical_formula_sum 'Sr S O4' _cell_length_a 8.360 _cell_length_b 5.352 _cell_length_c 6.858 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 306.846 _exptl_crystal_density_diffrn 3.976 _symmetry_space_group_name_H-M 'P n m a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '1/2+x,y,1/2-z' '1/2-x,-y,1/2+z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Sr 0.18410 0.25000 0.15820 S 0.43790 0.75000 0.18490 O1 0.59700 0.75000 0.09370 O2 0.31010 0.75000 0.04060 O3 0.42190 0.97450 0.31010 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 Sr 0.00952 0.01483 0.00796 0.00000 0.00029 0.00000 S 0.00935 0.00644 0.00434 0.00000 0.00026 0.00000 O1 0.01151 0.01512 0.01939 0.00000 0.00929 0.00000 O2 0.01756 0.01570 0.01458 0.00000 -0.00555 0.00000 O3 0.01406 0.00795 0.01592 -0.00243 0.00224 -0.00152