data_global _chemical_name_mineral 'Arsenopyrite' loop_ _publ_author_name 'Morimoto N' 'Clark L A' _journal_name_full 'American Mineralogist' _journal_volume 46 _journal_year 1961 _journal_page_first 1448 _journal_page_last 1469 _publ_section_title ; Arsenopyrite crystal-chemical relations From Freiberg, Germany ; _database_code_amcsd 112 _chemical_formula_sum 'Fe As S' _cell_length_a 5.744 _cell_length_b 5.675 _cell_length_c 5.785 _cell_angle_alpha 90.0 _cell_angle_beta 112.28 _cell_angle_gamma 90.0 _cell_volume 174.496 _exptl_crystal_density_diffrn 6.198 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z Fe1 0.272 0.0 0.289 Fe2 0.275 0.502 0.787 As1 0.154 0.371 0.363 As2 0.155 0.129 0.863 S1 0.346 -0.37 0.175 S2 0.343 -0.131 0.675