data_global _chemical_name_mineral 'Capgaronnite' loop_ _publ_author_name 'Mason B' 'Mumme W G' 'Sarp H' _journal_name_full 'American Mineralogist' _journal_volume 77 _journal_year 1992 _journal_page_first 197 _journal_page_last 200 _publ_section_title ; Capgaronnite, HgSAg(Cl,Br,I), a new sulfide-halide mineral from Var, France ; _database_code_amcsd 0001444 _chemical_formula_sum 'Hg Ag S (Cl.82 Br.18)' _cell_length_a 6.803 _cell_length_b 12.87 _cell_length_c 4.528 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 396.447 _exptl_crystal_density_diffrn 6.433 _symmetry_space_group_name_H-M 'P 21 21 2' loop_ _space_group_symop_operation_xyz '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 Hg 0.13400 0.25300 0.46400 1.00000 0.03500 Ag 0.29100 0.04400 -0.01000 1.00000 0.11000 S 0.39000 0.11400 0.46800 1.00000 0.03800 Cl 0.38300 0.35500 0.03100 0.82000 0.11000 Br 0.38300 0.35500 0.03100 0.18000 0.11000