data_global _chemical_name_mineral 'Ferberite' loop_ _publ_author_name 'Escobar C' 'Cid-Dresdner H' 'Kittl P' 'Dumler I' _journal_name_full 'American Mineralogist' _journal_volume 56 _journal_year 1971 _journal_page_first 489 _journal_page_last 498 _publ_section_title ; The relation between "light wolframite" and common wolframite sample: common wolframite ; _database_code_amcsd 231 _chemical_formula_sum 'W Fe O4' _cell_length_a 4.75 _cell_length_b 5.72 _cell_length_c 4.97 _cell_angle_alpha 90.0 _cell_angle_beta 90.17 _cell_angle_gamma 90.0 _cell_volume 135.034 _exptl_crystal_density_diffrn 7.469 _symmetry_space_group_name_H-M 'P 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,1/2+z' '-x,y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv W 0.0 0.1808 0.25 0.00253 Fe 0.5 0.3215 0.75 0.00507 O1 0.2158 0.1068 0.5833 0.0076 O2 0.2623 0.385 0.0912 0.0076