data_global _chemical_name_mineral 'Petersenite-(Ce)' loop_ _publ_author_name 'Grice J D' 'Velthuizen J V' 'Gault R A' _journal_name_full 'The Canadian Mineralogist' _journal_volume 32 _journal_year 1994 _journal_page_first 405 _journal_page_last 414 _publ_section_title ; Petersenite-(Ce), a new mineral from Mont Saint-Hilaire, and its structural relationship to other REE carbonates ; _database_code_amcsd 0005369 _chemical_compound_source 'Mont Saint-Hilaire, Quebec, Canada' _chemical_formula_sum 'Na4 Ce2 C5 O15' _cell_length_a 20.872 _cell_length_b 6.367 _cell_length_c 10.601 _cell_angle_alpha 90 _cell_angle_beta 120.50 _cell_angle_gamma 90 _cell_volume 1213.853 _exptl_crystal_density_diffrn 3.678 _symmetry_space_group_name_H-M 'P 1 21 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '-x,1/2+y,-z' loop_ _atom_site_label _atom_site_fract_x _atom_site_fract_y _atom_site_fract_z _atom_site_U_iso_or_equiv Na1 0.58120 0.49960 0.32470 0.01500 Na2 0.91870 0.99400 0.16200 0.01500 Na3 0.23320 0.80370 0.03560 0.01500 Na4 0.75620 0.31590 0.52450 0.01500 Na5 0.97760 0.30710 0.97310 0.01600 Na6 0.52250 0.80850 0.01870 0.01500 Na7 0.26670 0.30300 0.56940 0.01400 Na8 0.25620 0.31640 0.98800 0.01300 Ce1 0.65830 0.00000 0.64190 0.00800 Ce2 0.92060 0.99680 0.65560 0.00700 Ce3 0.84170 0.49750 0.32540 0.00900 Ce4 0.57940 0.49790 0.81440 0.00700 C1 0.32930 -0.01970 -0.14700 0.00900 C2 0.82910 -0.02080 0.80800 0.01000 C3 0.69660 0.53340 0.68400 0.00600 C4 -0.09790 0.53580 0.09420 0.00500 C5 0.10020 0.03440 0.31410 0.00700 C6 0.80270 0.02990 0.29000 0.00900 C7 0.59750 0.03130 0.29070 0.00600 C8 0.00100 0.82770 0.50800 0.01200 C9 0.59990 0.03230 0.88650 0.00800 C10 0.50290 0.82750 0.49780 0.00900 O1 0.29450 -0.01920 -0.07600 0.01300 O2 0.40050 -0.02750 -0.07670 0.01100 O3 0.70860 -0.52570 0.28990 0.01300 O4 0.90100 -0.02580 0.87950 0.01200 O5 0.79490 -0.01550 0.66630 0.01200 O6 0.79140 -0.02600 0.87160 0.01300 O7 0.72130 0.34800 0.70460 0.01000 O8 0.68410 -0.36260 0.56990 0.01300 O9 0.68430 -0.37520 0.78050 0.01200 O10 0.03660 0.12790 0.87080 0.01300 O11 0.14370 0.12580 0.87820 0.01300 O12 0.11060 0.85180 0.96130 0.02100 O13 0.95620 -0.36500 0.77640 0.01500 O14 0.88700 0.34510 0.71050 0.01100 O15 0.85220 -0.37420 0.56440 0.01200 O16 0.81690 0.13600 0.20200 0.01200 O17 0.77830 -0.14990 0.26340 0.01100 O18 0.81560 0.12420 0.41110 0.01300 O19 0.38930 0.35020 0.74010 0.02000 O20 0.53540 0.12910 0.20110 0.01500 O21 0.35550 0.62480 0.58890 0.01200 O22 0.95860 0.30840 0.55170 0.01700 O23 0.03430 -0.12410 0.64390 0.01400 O24 0.06770 0.30680 0.55990 0.01700 O25 0.64790 0.12550 0.85970 0.01100 O26 0.38790 0.34580 0.06460 0.00900 O27 0.45600 -0.36370 0.13610 0.01600 O28 0.56780 0.30750 0.57420 0.01700 O29 0.53460 0.87600 0.42500 0.01700 O30 0.45890 0.31000 0.36670 0.01400