data_1011195 _chemical_name_systematic 'Zinc sulfide' _chemical_name_mineral 'Wurtzite 2H' _chemical_compound_source 'from Pribram, Bohemia' _chemical_formula_structural 'Zn S' _chemical_formula_sum 'S Zn' _publ_section_title ; Untersuchungen ueber die Kristallstrukturen von Wurtzit und Rotnickelkies. ; _publ_author_name 'Aminoff, G' _journal_name_full ; Zeitschrift fuer Kristallographie, Kristallgeometrie, Kristallphysik, Kristallchemie (-144,1977) ; _journal_coden_ASTM ZEKGAX _journal_volume 58 _journal_year 1923 _journal_page_first 203 _journal_page_last 219 _cell_length_a 3.8 _cell_length_b 3.8 _cell_length_c 6.23 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 120 _cell_volume 77.9 _cell_formula_units_Z 2 _exptl_crystal_density_meas 4.05 _symmetry_space_group_name_H-M 'P 63 m c' _symmetry_Int_Tables_number 186 _symmetry_cell_setting hexagonal loop_ _symmetry_equiv_pos_as_xyz 'x,y,z' '-y,x-y,z' 'y-x,-x,z' '-y,-x,z' 'y-x,y,z' 'x,x-y,z' '-x,-y,1/2+z' 'y,y-x,1/2+z' 'x-y,x,1/2+z' 'y,x,1/2+z' 'x-y,-y,1/2+z' '-x,y-x,1/2+z' loop_ _atom_type_symbol _atom_type_oxidation_number Zn2+ 2.000 S2- -2.000 loop_ _atom_site_label _atom_site_type_symbol _atom_site_symmetry_multiplicity _atom_site_Wyckoff_symbol _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_occupancy _atom_site_attached_hydrogens _atom_site_calc_flag Zn1 Zn2+ 2 b 0.3333 0.6667 0. 1. 0 d S1 S2- 2 b 0.3333 0.6667 0.375 1. 0 d