data_1010864 _chemical_name_systematic 'Hexalead 14-antimony 27-sulfide' _chemical_name_mineral 'Zinckenite' _chemical_compound_source 'from the British Museum' _chemical_formula_structural 'Pb6 Sb14 S27' _chemical_formula_sum 'Pb6 S27 Sb14' _publ_section_title 'The identity of Zinckenite and Keeleyite.' loop_ _publ_author_name 'Vaux, G' 'Bannister, F A' _journal_name_full ; Mineralogical Magazine and Journal of the Mineralogical Society (1876- 1968) ; _journal_coden_ASTM MIASA6 _journal_volume 25 _journal_year 1938 _journal_page_first 221 _journal_page_last 227 _cell_length_a 44.06 _cell_length_b 76.31 _cell_length_c 8.6 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 25041.2 _cell_formula_units_Z 12