data_global _chemical_name_mineral 'Georgerobinsonite' loop_ _publ_author_name 'Cooper M A' 'Ball N A' 'Hawthorne F C' 'Paar W H' 'Roberts A C' 'Moffatt E' _journal_name_full 'The Canadian Mineralogist' _journal_volume 49 _journal_year 2011 _journal_page_first 865 _journal_page_last 876 _publ_section_title ; Georgerobinsonite, Pb4(CrO4)2(OH)2FCl, a new chromate mineral from the Mammoth-St. Anthony mine, Tiger, Pinal County, Arizona: description and crystal structure ; _database_code_amcsd 0018387 _chemical_compound_source 'Mammoth-St. Anthony mine, Tiger, Pinal County, Arizona, USA' _chemical_formula_sum 'Pb4 Cr2 Cl F O10 H2' _cell_length_a 7.6256 _cell_length_b 11.6081 _cell_length_c 6.8961 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 610.434 _exptl_crystal_density_diffrn 6.253 _symmetry_space_group_name_H-M 'P m m n' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,z' '-x,1/2+y,-z' '1/2-x,y,z' '1/2+x,-y,-z' '1/2+x,1/2+y,-z' '1/2-x,1/2-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 Pb(1) 0.25000 0.59690 0.12642 1.00000 0.02183 Pb(2) 0.50242 0.25000 0.41670 1.00000 0.02025 Cr 0.25000 0.49812 0.64850 1.00000 0.01290 Cl 0.25000 0.22840 0.07200 0.50000 0.02170 F 0.75000 0.25000 0.13270 1.00000 0.02700 O(1) 0.42260 0.51210 0.78040 1.00000 0.02640 O(2) 0.25000 0.60700 0.49310 1.00000 0.02320 O(3) 0.25000 0.37630 0.52890 1.00000 0.02350 O-h4 0.43880 0.75000 0.23060 1.00000 0.01660 H 0.55000 0.75000 0.15900 1.00000 0.02000 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 Pb(1) 0.02560 0.02330 0.01660 0.00000 0.00000 -0.00310 Pb(2) 0.01470 0.02390 0.02210 0.00000 -0.00089 0.00000 Cr 0.01340 0.01350 0.01170 0.00000 0.00000 -0.00150 F 0.03500 0.03400 0.01100 0.00000 0.00000 0.00000 O(1) 0.02300 0.03300 0.02300 0.00600 -0.00300 -0.00600 O(2) 0.02800 0.02100 0.02100 0.00000 0.00000 0.00000 O(3) 0.02300 0.01600 0.03200 0.00000 0.00000 -0.00300 O-h4 0.01400 0.01900 0.01600 0.00000 -0.00100 0.00000