data_global _amcsd_formula_title 'Mn2GeO4-delta' loop_ _publ_author_name 'Morimoto N' 'Tokonami M' 'Koto K' 'Nakajima S' _journal_name_full 'American Mineralogist' _journal_volume 57 _journal_year 1972 _journal_page_first 62 _journal_page_last 75 _publ_section_title ; Crystal structures of the high pressure polymorphs of Mn2GeO4 ; _database_code_amcsd 271 _chemical_formula_sum 'Mn2 Ge O4' _cell_length_a 5.262 _cell_length_b 9.274 _cell_length_c 2.954 _cell_angle_alpha 90.0 _cell_angle_beta 90.0 _cell_angle_gamma 90.0 _cell_volume 144.155 _exptl_crystal_density_diffrn 5.679 _symmetry_space_group_name_H-M 'P b a m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' 'x,y,-z' '-x,-y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Mn 0.0622 0.3222 0.5 Ge 0.0 0.0 0.0 O1 0.2295 0.0433 0.5 O2 0.3722 0.3141 0.0 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 Mn 0.00673 0.01176 0.01768 -0.00025 0.0 0.0 Ge 0.00743 0.00741 0.01459 0.0 0.0 0.0 O1 0.01094 0.01133 0.01282 -0.0047 0.0 0.0 O2 0.00926 0.00741 0.01326 0.0 0.0 0.0