data_global _chemical_name_mineral 'Lepidocrocite' loop_ _publ_author_name 'Zhukhlistov A P' _journal_name_full 'Crystallography Reports' _journal_volume 46 _journal_year 2001 _journal_page_first 730 _journal_page_last 733 _publ_section_title ; Crystal structure of lepidocrocite FeO(OH) from the electron-diffractometry data ; _database_code_amcsd 0020690 _chemical_compound_source 'natural but not given' _chemical_formula_sum 'Fe O2 H' _cell_length_a 3.072 _cell_length_b 12.516 _cell_length_c 3.873 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 148.914 _exptl_crystal_density_diffrn 3.963 _symmetry_space_group_name_H-M 'C m c m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,y,z' '1/2-x,1/2+y,z' 'x,-y,-z' '1/2+x,1/2-y,-z' 'x,y,1/2-z' '1/2+x,1/2+y,1/2-z' '-x,-y,1/2+z' '1/2-x,1/2-y,1/2+z' '-x,-y,-z' '1/2-x,1/2-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy Fe 0.50000 0.17780 0.25000 1.00000 O1 0.00000 0.28890 0.25000 1.00000 O2 0.00000 0.07380 0.25000 1.00000 H 0.00000 -0.00100 0.17900 0.50000 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 Fe 0.00296 0.01190 0.00965 0.00000 0.00000 0.00000 O1 0.00516 0.01746 0.00851 0.00000 0.00000 0.00000 O2 0.00502 0.01905 0.01611 0.00000 0.00000 0.00000 H 0.01721 0.02381 0.02280 0.00000 0.00000 -0.00123