data_global _chemical_name_mineral 'Sinnerite' loop_ _publ_author_name 'Makovicky E' 'Skinner B J' _journal_name_full 'American Mineralogist' _journal_volume 60 _journal_year 1975 _journal_page_first 998 _journal_page_last 1012 _publ_section_title ; Studies of the sulfosalts of copper. IV. Structure and twinning of sinnerite, Cu6As4S9 ; _database_code_amcsd 475 _chemical_formula_sum 'As4 Cu6 S9' _cell_length_a 9.064 _cell_length_b 9.83 _cell_length_c 9.078 _cell_angle_alpha 90.0 _cell_angle_beta 109.5 _cell_angle_gamma 107.8 _cell_volume 721.242 _exptl_crystal_density_diffrn 4.464 _symmetry_space_group_name_H-M 'P 1' loop_ _space_group_symop_operation_xyz 'x,y,z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z As1 0.123 0.012 0.061 As2 0.318 0.18 0.401 As3 0.874 0.014 0.259 As4 0.156 0.827 0.348 As5 0.451 0.594 0.51 As6 0.663 0.789 0.868 As7 0.233 0.59 0.714 As8 0.545 0.432 0.835 Cu1 0.962 0.623 0.943 Cu2 0.426 0.788 0.099 Cu3 0.569 0.178 0.146 Cu4 0.307 0.415 0.068 Cu5 0.838 0.21 0.96 Cu6 0.915 0.822 0.614 Cu7 0.356 0.984 0.749 Cu8 0.069 0.213 0.665 Cu9 0.032 0.375 0.347 Cu10 0.795 0.386 0.564 Cu11 0.598 0.966 0.494 Cu12 0.72 0.602 0.185 S2 0.332 0.191 0.681 S3 0.833 0.994 0.536 S4 0.186 0.777 0.603 S6 0.653 0.826 0.104 S7 0.222 0.597 0.94 S8 0.539 0.401 0.096 S9 0.997 0.584 0.237 S10 0.426 0.797 0.338 S11 0.588 0.165 0.428 S12 0.26 0.416 0.342 S13 0.831 0.184 0.174 S14 0.903 0.824 0.864 S15 0.376 0.969 0.982 S16 0.014 0.169 0.881 S17 0.028 0.385 0.615 S18 0.796 0.385 0.872 S19 0.582 0.959 0.719 S20 0.722 0.595 0.48