data_global _chemical_name_mineral 'Argutite' loop_ _publ_author_name 'Baur W H' _journal_name_full 'Acta Crystallographica' _journal_volume 9 _journal_year 1956 _journal_page_first 515 _journal_page_last 520 _publ_section_title ; Uber die verfeinerung der kristallstrukturbestimmung einiger vertreter des rutiltyps: TiO2, SnO2, GeO2 und MgF2 ; _database_code_amcsd 0009164 _chemical_formula_sum 'Ge O2' _cell_length_a 4.395 _cell_length_b 4.395 _cell_length_c 2.860 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 55.244 _exptl_crystal_density_diffrn 6.289 _symmetry_space_group_name_H-M 'P 42/m n m' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,z' 'y,x,-z' '1/2+y,1/2-x,1/2-z' '1/2-y,1/2+x,1/2+z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' 'x,y,-z' '-x,-y,z' 'y,x,z' '-y,-x,-z' '1/2-y,1/2+x,1/2-z' '1/2+y,1/2-x,1/2+z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Ge 0.00000 0.00000 0.00000 O 0.30700 0.30700 0.00000