data_global _chemical_name_mineral 'Crocoite' loop_ _publ_author_name 'Effenberger H' 'Pertlik F' _journal_name_full 'Zeitschrift fur Kristallographie' _journal_volume 176 _journal_year 1986 _journal_page_first 75 _journal_page_last 83 _publ_section_title ; Four monazite type structures: comparison of SrCrO4, SrSeO4, PbCrO4 (crocoite), and PbSeO4 ; _database_code_amcsd 0019487 _chemical_compound_source 'Dundas, Tasmania' _chemical_formula_sum 'Pb Cr O4' _cell_length_a 7.127 _cell_length_b 7.438 _cell_length_c 6.799 _cell_angle_alpha 90 _cell_angle_beta 102.43 _cell_angle_gamma 90 _cell_volume 351.971 _exptl_crystal_density_diffrn 6.099 _symmetry_space_group_name_H-M 'P 1 21/n 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,1/2+z' '1/2-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 Pb 0.22130 0.14545 0.39692 Cr 0.20107 0.16364 0.88184 O1 0.25380 0.00420 0.05740 O2 0.12450 0.34250 0.98900 O3 0.02950 0.09990 0.68580 O4 0.38590 0.21410 0.78190 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 Pb 0.01840 0.01630 0.01520 -0.00160 0.00520 -0.00110 Cr 0.00930 0.00920 0.00880 -0.00070 0.00270 -0.00140 O1 0.03100 0.01800 0.01900 0.00300 0.00600 0.00400 O2 0.01700 0.01700 0.02400 0.00100 0.00900 -0.00600 O3 0.01800 0.02000 0.02200 -0.00500 -0.00300 -0.00100 O4 0.01000 0.02900 0.01900 -0.00100 0.00600 -0.00200