data_global _chemical_name_mineral 'Boscardinite' loop_ _publ_author_name 'Orlandi P' 'Biagioni C' 'Bonaccorsi E' 'Moelo Y' 'Paar W H' _journal_name_full 'The Canadian Mineralogist' _journal_volume 50 _journal_year 2012 _journal_page_first 235 _journal_page_last 251 _publ_section_title ; Lead-antimony sulfosalts from Tuscany (Italy). XII. Boscardinite, TlPb4(Sb7As2)S9S18, a new mineral species from the Monte Arsiccio mine: Occurrence and crystal structure ; _database_code_amcsd 0019212 _chemical_compound_source 'Monte Arsiccio, near Sant'Anna di Stazzema, Apuan Alps, Tuscany, Italy' _chemical_formula_sum 'Ag.29 Tl1.23 Pb2.956 Sb7.794 As1.73 S18' _cell_length_a 8.0929 _cell_length_b 8.7610 _cell_length_c 22.497 _cell_angle_alpha 90.868 _cell_angle_beta 97.247 _cell_angle_gamma 90.793 _cell_volume 1581.957 _exptl_crystal_density_diffrn 5.355 _symmetry_space_group_name_H-M 'P -1' loop_ _space_group_symop_operation_xyz '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 Ag10b 0.47680 0.63110 0.41280 0.29000 0.02810 Tl1 0.11091 0.63591 0.16858 0.80000 0.03000 Pb1 0.11091 0.63591 0.16858 0.20000 0.03000 Pb2a 0.88760 0.88720 0.82140 0.27000 0.03650 Tl2a 0.88760 0.88720 0.82140 0.11000 0.03650 Pb2b 0.84810 0.84890 0.82670 0.50000 0.03650 Tl2b 0.84810 0.84890 0.82670 0.12000 0.03650 Pb3 0.66435 0.65298 0.25913 0.80000 0.03540 Tl3 0.66435 0.65298 0.25913 0.20000 0.03540 Pb4 0.64766 0.14848 0.25445 1.00000 0.03570 Sb1 0.54560 0.39690 0.09929 1.00000 0.01430 Sb2 0.81920 0.10370 0.02078 1.00000 0.01320 Sb3 0.48670 0.11740 0.88652 0.71000 0.01470 As3 0.48670 0.11740 0.88652 0.29000 0.01470 As4 0.17270 0.36020 0.99928 0.75000 0.01620 Sb4 0.17270 0.36020 0.99928 0.25000 0.01620 Sb5 0.06850 0.38800 0.33165 0.78000 0.01530 As5 0.06850 0.38800 0.33165 0.22000 0.01530 Sb6 0.10910 0.85270 0.34360 1.00000 0.02180 Sb7 0.84640 0.34200 0.46700 1.00000 0.01940 Sb8 0.78840 0.89960 0.44625 0.53000 0.02300 As8 0.78840 0.89960 0.44625 0.47000 0.02300 Sb9a 0.43230 0.15710 0.41070 0.81400 0.01740 Pb9b 0.39330 0.12610 0.41820 0.18600 0.01740 Sb10a 0.47340 0.59940 0.42400 0.71000 0.02810 S1 0.36000 0.17990 0.03690 1.00000 0.02820 S2 0.92220 0.69190 0.39830 1.00000 0.01860 S3 0.28440 0.91350 0.86160 1.00000 0.01240 S4 0.90300 0.38720 0.23590 1.00000 0.02420 S5 0.62460 0.35550 0.37740 1.00000 0.01480 S6 0.67120 0.16940 0.51680 1.00000 0.01690 S7 0.98680 0.08760 0.93160 1.00000 0.01020 S8 0.92330 0.88120 0.25320 1.00000 0.01790 S9 0.32380 0.56470 0.04900 1.00000 0.01440 S10 0.29320 0.42760 0.47220 1.00000 0.02000 S11 0.97000 0.08690 0.41700 1.00000 0.02690 S12 0.98490 0.33140 0.07040 1.00000 0.01430 S13 0.57140 0.92910 0.36400 1.00000 0.02500 S14 0.25310 0.19000 0.30630 1.00000 0.01680 S15 0.69690 0.67260 0.13860 1.00000 0.01420 S16 0.25420 0.59910 0.31280 1.00000 0.01840 S17 0.42260 0.37020 0.19280 1.00000 0.01860 S18 0.59450 0.10110 0.79220 1.00000 0.02020