data_global _chemical_name_mineral 'Auriacusite' loop_ _publ_author_name 'Mills S J' 'Kampf A R' 'Poirier G' 'Raudsepp M' 'Steele I M' _journal_name_full 'Mineralogy and Petrology' _journal_volume 99 _journal_year 2010 _journal_page_first 113 _journal_page_last 120 _publ_section_title ; Auriacusite, Fe3+Cu2+AsO4O, the first M3+ member of the olivenite group, from the Black Pine mine, Montana, USA ; _database_code_amcsd 0014650 _chemical_compound_source 'Black Pine mine, Montana, USA' _chemical_formula_sum 'Fe.55 Cu1.45 As O5' _cell_length_a 8.6235 _cell_length_b 8.2757 _cell_length_c 5.9501 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 424.632 _exptl_crystal_density_diffrn 4.345 _symmetry_space_group_name_H-M 'P n n m' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-x,1/2+y,1/2-z' '1/2-x,1/2+y,1/2+z' '1/2+x,1/2-y,1/2-z' 'x,y,-z' '-x,-y,z' '-x,-y,-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 FeM 0.11880 0.13730 0.50000 0.55000 0.01570 CuM 0.11880 0.13730 0.50000 0.45000 0.01570 Cu 0.00000 0.50000 0.24910 1.00000 0.00540 As 0.25100 0.26300 0.00000 1.00000 0.00540 O1A 0.40100 0.39600 -0.05100 0.25000 0.00100 O1B 0.38700 0.40400 0.07800 0.25000 0.00100 O2 0.08270 0.36670 0.00000 1.00000 0.00560 O3 0.26700 0.14800 0.23100 1.00000 0.02600 O4 -0.09710 0.62430 0.50000 1.00000 0.00350 loop_ _atom_site_aniso_label _atom_site_aniso_U_11 _atom_site_aniso_U_22 _atom_site_aniso_U_33 _atom_site_aniso_U_12 _atom_site_aniso_U_13 _atom_site_aniso_U_23 FeM 0.00890 0.00640 0.03180 0.00000 0.00000 0.00000 CuM 0.00890 0.00640 0.03180 0.00000 0.00000 0.00000 Cu 0.00810 0.00590 0.00210 0.00240 0.00000 0.00000 As 0.00550 0.00430 0.00640 0.00060 0.00000 0.00000