data_global _chemical_name_mineral 'Hephaistosite' loop_ _publ_author_name 'Campostrini I' 'Demartin F' 'Gramaccioli C M' 'Orlandi P' _journal_name_full 'The Canadian Mineralogist' _journal_volume 46 _journal_year 2008 _journal_page_first 701 _journal_page_last 708 _publ_section_title ; Hephaistosite, TlPb2Cl5, a new thallium mineral series from La Fossa Crater, Vulcano, Aeolian Islands, Italy Location: La Fossa Crater, Vulcano, Aeolian Islands, Italy ; _database_code_amcsd 0006195 _chemical_formula_sum 'Tl Pb2 Cl5' _cell_length_a 8.9477 _cell_length_b 7.9218 _cell_length_c 12.4955 _cell_angle_alpha 90 _cell_angle_beta 90.092 _cell_angle_gamma 90 _cell_volume 885.703 _exptl_crystal_density_diffrn 5.970 _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 Tl 0.98934 -0.05117 0.16638 0.03410 Pb1 0.49483 -0.00984 0.17439 0.02350 Pb2 0.75346 0.43582 0.00620 0.02060 Cl1 0.04090 0.32200 0.08000 0.02690 Cl2 0.45740 0.33430 0.09650 0.02100 Cl3 0.27480 0.15750 0.31180 0.02090 Cl4 0.71890 0.04080 0.00160 0.02030 Cl5 0.73080 0.18750 0.27820 0.02210 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 Tl 0.03140 0.03400 0.03680 0.00580 0.00300 0.00590 Pb1 0.02500 0.02390 0.02150 -0.00280 0.00030 -0.00170 Pb2 0.01850 0.02230 0.02090 0.00070 0.00110 -0.00150 Cl1 0.01700 0.02620 0.03750 -0.00050 0.00050 0.01560 Cl2 0.01790 0.01850 0.02660 0.00170 -0.00030 0.00440 Cl3 0.02690 0.02060 0.01520 0.00730 0.00730 0.00470 Cl4 0.02200 0.02070 0.01830 0.00030 0.00060 -0.00150 Cl5 0.02450 0.02230 0.01960 -0.00210 -0.00010 -0.00190