data_global _chemical_name_mineral 'Murunskite' loop_ _publ_author_name 'Pekov I V' 'Zubkova N V' 'Lisitsyn D V' 'Pushcharovsky D Y' _journal_name_full 'Doklady Earth Sciences' _journal_volume 424 _journal_year 2009 _journal_page_first 139 _journal_page_last 141 _publ_section_title ; Crystal chemistry of murunskite ; _database_code_amcsd 0017729 _chemical_compound_source 'Murun pluton, Eastern Siberia, Russia' _chemical_formula_sum 'K.737 Cu1.48 Fe.54 S2' _cell_length_a 3.8460 _cell_length_b 3.8460 _cell_length_c 13.308 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 196.848 _exptl_crystal_density_diffrn 3.664 _symmetry_space_group_name_H-M 'I 4/m m m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,1/2+z' '-y,-x,z' '1/2-y,1/2-x,1/2+z' 'y,x,-z' '1/2+y,1/2+x,1/2-z' 'y,-x,-z' '1/2+y,1/2-x,1/2-z' '-y,x,z' '1/2-y,1/2+x,1/2+z' 'x,-y,z' '1/2+x,1/2-y,1/2+z' '-x,y,-z' '1/2-x,1/2+y,1/2-z' 'x,y,-z' '1/2+x,1/2+y,1/2-z' '-x,-y,z' '1/2-x,1/2-y,1/2+z' 'y,x,z' '1/2+y,1/2+x,1/2+z' '-y,-x,-z' '1/2-y,1/2-x,1/2-z' '-y,x,-z' '1/2-y,1/2+x,1/2-z' 'y,-x,z' '1/2+y,1/2-x,1/2+z' '-x,y,z' '1/2-x,1/2+y,1/2+z' 'x,-y,-z' '1/2+x,1/2-y,1/2-z' '-x,-y,-z' '1/2-x,1/2-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 K 0.00000 0.00000 0.00000 0.73700 0.03670 Cu 0.00000 0.50000 0.25000 0.74000 0.02230 FeCu 0.00000 0.50000 0.25000 0.27000 0.02230 S 0.00000 0.00000 0.35177 1.00000 0.01880