data_global _chemical_name_mineral 'Argutite' loop_ _publ_author_name 'Haines J' 'Leger J M' 'Chateau C' 'Pereira A S' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 27 _journal_year 2000 _journal_page_first 575 _journal_page_last 582 _publ_section_title ; Structural evolution of rutile-type and CaCl2-type germanium dioxide at high pressure Sample: rutile-type, P = 0 GPa ; _database_code_amcsd 0008431 _chemical_formula_sum 'Ge O2' _cell_length_a 4.3966 _cell_length_b 4.3966 _cell_length_c 2.8626 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 55.334 _exptl_crystal_density_diffrn 6.278 _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 0.30630 0.30630 0.00000