data_global _chemical_name_mineral 'Renierite' loop_ _publ_author_name 'Bernstein L R' 'Reichel D G' 'Merlino S' _journal_name_full 'American Mineralogist' _journal_volume 74 _journal_year 1989 _journal_page_first 1177 _journal_page_last 1181 _publ_section_title ; Renierite crystal structure refined from Rietveld analysis of powder neutron-diffrection data ; _database_code_amcsd 0001278 _chemical_formula_sum 'Cu9.36 Zn Ge1.62 Fe3.56 S16' _cell_length_a 10.6226 _cell_length_b 10.6226 _cell_length_c 10.5506 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1190.526 _exptl_crystal_density_diffrn 4.156 _symmetry_space_group_name_H-M 'P -4 2 c' loop_ _space_group_symop_operation_xyz 'x,y,z' '-y,-x,1/2+z' 'y,-x,-z' '-x,y,1/2-z' '-x,-y,z' 'y,x,1/2+z' '-y,x,-z' 'x,-y,1/2-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_U_iso_or_equiv Cu1 0.24840 0.00000 0.25000 0.82000 0.02026 Cu2 0.23360 0.50000 0.25000 0.90000 0.02280 Cu3 0.00000 0.50000 0.00150 0.96000 0.01646 Cu4 0.25440 0.25850 0.51070 1.00000 0.01773 Zn 0.00000 0.00000 0.00000 1.00000 0.03040 Ge 0.00000 0.24980 0.25000 0.81000 0.00760 Fe1 0.50000 0.26460 0.25000 0.90000 0.01140 Fe2 0.50000 0.00000 0.25000 0.84000 0.01140 Fe3 0.50000 0.50000 0.00000 0.92000 0.00380 S1 0.39380 0.13900 0.12400 1.00000 0.01267 S2 0.12320 0.36990 0.11860 1.00000 0.01267 S3 0.37970 0.37660 0.37360 1.00000 0.01267 S4 0.12250 0.13980 0.38520 1.00000 0.01267