data_global _chemical_name_mineral 'Schafarzikite' loop_ _publ_author_name 'Zemann J' _journal_name_full 'Tschermaks Mineralogische und Petrographische Mitteilungen' _journal_volume 2 _journal_year 1951 _journal_page_first 166 _journal_page_last 175 _publ_section_title ; Formel und kristallstruktur des schafarzikits ; _database_code_amcsd 0015631 _chemical_compound_source 'Pernek, Slovakia - 30 km north of Bratislava' _chemical_formula_sum 'Fe Sb2 O4' _cell_length_a 8.59 _cell_length_b 8.59 _cell_length_c 5.92 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 436.826 _exptl_crystal_density_diffrn 5.525 _symmetry_space_group_name_H-M 'P 42/m b c' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2-y,1/2-x,1/2+z' '1/2+y,1/2+x,1/2-z' 'y,-x,1/2-z' '-y,x,1/2+z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' 'x,y,-z' '-x,-y,z' '1/2+y,1/2+x,1/2+z' '1/2-y,1/2-x,1/2-z' '-y,x,1/2-z' 'y,-x,1/2+z' '1/2-x,1/2+y,z' '1/2+x,1/2-y,-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Fe 0.00000 0.50000 0.25000 Sb 0.17500 0.16700 0.00000 O1 0.66900 0.16900 0.25000 O2 0.11400 0.61400 0.00000