data_global _chemical_name_mineral 'Imiterite' loop_ _publ_author_name 'Guillou J J' 'Monthel J' 'Picot P' 'Pillard F' 'Protas J' 'Samama J C' _journal_name_full 'Bulletin de Mineralogie' _journal_volume 108 _journal_year 1985 _journal_page_first 457 _journal_page_last 464 _publ_section_title ; L'imiterite, Ag2HgS2 nouvelle espece minerale; proprietes et structure cristalline ; _database_code_amcsd 0012085 _chemical_compound_source 'Tinerhir, Boulmane, Morocco' _chemical_formula_sum 'Ag2 Hg S2' _cell_length_a 4.0394 _cell_length_b 8.0050 _cell_length_c 6.5812 _cell_angle_alpha 90 _cell_angle_beta 107.12 _cell_angle_gamma 90 _cell_volume 203.376 _exptl_crystal_density_diffrn 7.846 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-x,1/2+y,1/2-z' '-x,-y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Ag 0.62970 0.15110 0.40810 0.03040 Hg 0.00000 0.00000 0.00000 0.01862 S 0.20140 0.37050 0.23380 0.01406