data_global _chemical_name_mineral 'Cinnabar' loop_ _publ_author_name 'Ramsdell L S' _journal_name_full 'American Mineralogist' _journal_volume 10 _journal_year 1925 _journal_page_first 281 _journal_page_last 304 _publ_section_title ; The crystal structures of some metallic sulfides ; _database_code_amcsd 0000007 _chemical_compound_source 'unknown' _chemical_formula_sum 'Hg S' _cell_length_a 4.15 _cell_length_b 4.15 _cell_length_c 9.51 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 141.843 _exptl_crystal_density_diffrn 8.171 _symmetry_space_group_name_H-M 'P 32 2 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'y,x,-z' '-y,x-y,2/3+z' '-x,-x+y,2/3-z' '-x+y,-x,1/3+z' 'x-y,-y,1/3-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Hg 0.33333 0.33333 0.00000 S 0.33333 0.33333 0.50000