data_global _chemical_name_mineral 'Bussyite-(Ce)' loop_ _publ_author_name 'Grice J D' 'Rowe R' 'Poirier G' 'Pratt A' 'Francis J' _journal_name_full 'The Canadian Mineralogist' _journal_volume 47 _journal_year 2009 _journal_page_first 193 _journal_page_last 204 _publ_section_title ; Bussyite-(Ce), a new beryllium silicate mineral species from Mont Saint-Hilaire, Quebec ; _database_code_amcsd 0006285 _chemical_compound_source 'Poudrette quarry, Mont Saint-Hilaire, Quebec, Canada' _chemical_formula_sum 'Ce.824 Nd.374 Y.242 Th.174 Pr.114 Sm.08 Gd.078 Eu.008 (Ca.764 La.236) Na3.652 O33.15 Mn.485 Mg.012 Si8.824 Be5.176 F4 H6.3' _cell_length_a 11.6445 _cell_length_b 13.9212 _cell_length_c 16.5909 _cell_angle_alpha 90 _cell_angle_beta 96.127 _cell_angle_gamma 90 _cell_volume 2674.112 _exptl_crystal_density_diffrn 3.364 _symmetry_space_group_name_H-M 'C 1 2/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2+y,z' 'x,-y,1/2+z' '1/2+x,1/2-y,1/2+z' '-x,y,1/2-z' '1/2-x,1/2+y,1/2-z' '-x,-y,-z' '1/2-x,1/2-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 Ce1 0.14869 0.25501 0.39821 0.41200 0.01515 Nd1 0.14869 0.25501 0.39821 0.18700 0.01515 Y1 0.14869 0.25501 0.39821 0.12100 0.01515 Th1 0.14869 0.25501 0.39821 0.08700 0.01515 Pr1 0.14869 0.25501 0.39821 0.05700 0.01515 Sm1 0.14869 0.25501 0.39821 0.04000 0.01515 Gd1 0.14869 0.25501 0.39821 0.03900 0.01515 Eu1 0.14869 0.25501 0.39821 0.00400 0.01515 Ca 0.00000 0.45863 0.25000 0.76400 0.02050 La 0.00000 0.45863 0.25000 0.23600 0.02050 Na1 0.00000 0.73890 0.25000 0.55000 0.03780 Wat1 0.00000 0.73890 0.25000 0.45000 0.03780 Na2 0.16860 0.54350 0.40040 0.55000 0.03390 Wat2 0.16860 0.54350 0.40040 0.45000 0.03390 Na3 0.17250 0.98020 0.41240 0.55000 0.04530 Wat3 0.17250 0.98020 0.41240 0.45000 0.04530 Na4 0.18740 0.24690 -0.03820 0.25000 0.05660 Wat4 0.18740 0.24690 -0.03820 0.45000 0.05660 Mn 0.00000 0.07534 0.25000 0.48500 0.03420 Na 0.00000 0.07534 0.25000 0.40200 0.03420 Mg 0.00000 0.07534 0.25000 0.01200 0.03420 Si1 0.20532 0.90024 0.23466 1.00000 0.02760 Si2 0.08150 0.10560 0.06150 0.46300 0.01540 Be2 0.08150 0.10560 0.06150 0.53700 0.01530 Si3 0.08092 0.60954 0.08162 1.00000 0.02800 Si4 0.16350 0.25345 0.17442 1.00000 0.02350 Si5 0.09190 0.88860 0.07360 0.64000 0.01420 Si5a 0.05210 0.81080 0.08730 0.20900 0.02600 Be5a 0.05210 0.81080 0.08730 0.15100 0.02600 Be6 0.25230 0.60250 0.21910 0.94000 0.01000 Si6 0.25230 0.60250 0.21910 0.06000 0.01000 Be7 0.04790 0.40410 0.07800 0.96000 0.01800 Si7 0.04790 0.40410 0.07800 0.04000 0.01800 O1 0.31770 0.89540 0.18520 1.00000 0.01790 O2 0.17940 0.00270 0.27200 1.00000 0.02000 O3 0.08920 0.86870 0.17210 1.00000 0.02370 O4 0.28100 0.31960 0.19060 1.00000 0.02300 O5 -0.02720 0.10840 0.11100 1.00000 0.01460 O6 0.04480 0.12920 -0.03580 1.00000 0.02420 O7 0.18060 0.18200 0.09870 1.00000 0.02380 O8 0.14140 0.99960 0.06020 1.00000 0.03640 O9 -0.00530 0.69250 0.11380 1.00000 0.04200 O10 0.21310 0.62500 0.12060 1.00000 0.01530 O11 0.07130 0.61990 -0.01680 1.00000 0.02400 O12 0.03200 0.50910 0.11320 1.00000 0.02140 O13 0.05040 0.32200 0.15120 1.00000 0.01860 O14 0.15470 0.19090 0.25570 1.00000 0.01300 O15 0.32780 0.31090 0.46430 1.00000 0.01850 F16 0.13900 0.60140 0.26560 1.00000 0.03720 F17 0.16200 0.39900 0.03030 1.00000 0.04600 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 Ce1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Nd1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Y1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Th1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Pr1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Sm1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Gd1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Eu1 0.01680 0.01400 0.01400 -0.00050 -0.00110 -0.00050 Ca 0.01990 0.02280 0.01860 0.00000 0.00130 0.00000 La 0.01990 0.02280 0.01860 0.00000 0.00130 0.00000 Na1 0.05350 0.03130 0.03160 0.00000 0.01740 0.00000 Wat1 0.05350 0.03130 0.03160 0.00000 0.01740 0.00000 Na2 0.01700 0.06710 0.01690 -0.00470 -0.00070 -0.01180 Wat2 0.01700 0.06710 0.01690 -0.00470 -0.00070 -0.01180 Na3 0.03610 0.05300 0.04760 0.00260 0.00810 0.02900 Wat3 0.03610 0.05300 0.04760 0.00260 0.00810 0.02900 Na4 0.07600 0.03000 0.06800 -0.00600 0.02500 0.00000 Wat4 0.07600 0.03000 0.06800 -0.00600 0.02500 0.00000 Mn 0.02590 0.04770 0.02800 0.00000 -0.00160 0.00000 Na 0.02590 0.04770 0.02800 0.00000 -0.00160 0.00000 Mg 0.02590 0.04770 0.02800 0.00000 -0.00160 0.00000 Si1 0.03150 0.02610 0.02430 0.00030 -0.00070 -0.00290 Si2 0.01640 0.01400 0.01560 0.00070 -0.00070 0.00250 Be2 0.01640 0.01400 0.01560 0.00070 -0.00070 0.00250 Si3 0.02910 0.02920 0.02470 -0.00630 -0.00200 0.00240 Si4 0.02510 0.02280 0.02130 -0.00140 -0.00330 -0.00150 Si5 0.02360 0.00360 0.01530 0.00120 0.00110 -0.00010 Si5a 0.02700 0.03600 0.02000 5.00000 -0.00300 -0.00700 Be5a 0.02700 0.03000 0.02000 0.00500 -0.00300 -0.00700 Be6 0.01000 0.00700 0.01600 0.00300 0.00900 0.00000 Si6 0.01000 0.00700 0.01600 0.00300 0.00900 0.00000 Be7 0.01100 0.01200 0.03000 0.00000 0.00500 -0.00400 Si7 0.01100 0.01200 0.03000 0.00000 0.00500 -0.00400 O1 0.02000 0.01600 0.02000 0.00400 0.00900 -0.00200 O2 0.02300 0.01600 0.02300 0.00500 0.01100 -0.00300 O3 0.01700 0.03200 0.02100 -0.00600 -0.00500 -0.00600 O4 0.02900 0.02000 0.01800 -0.01200 -0.00600 -0.00800 O5 0.01400 0.01700 0.01300 -0.00400 0.00300 -0.00100 O6 0.02300 0.03300 0.01700 0.01100 -0.00200 0.00000 O7 0.02600 0.02300 0.02300 -0.00100 0.00400 -0.00600 O8 0.04700 0.02700 0.03600 0.00600 0.01400 -0.00300 O9 0.05900 0.03300 0.03400 0.01900 0.00600 -0.00200 O10 0.01100 0.02200 0.01100 -0.00700 -0.00400 0.00500 O11 0.03100 0.03400 0.00500 -0.01200 -0.00400 0.00500 O12 0.02700 0.01300 0.02400 -0.00500 0.00000 0.00000 O13 0.01500 0.02000 0.02000 0.00000 0.00000 0.00000 O14 0.01800 0.01300 0.00700 -0.00200 -0.00200 0.00300 O15 0.01800 0.02200 0.01400 -0.00200 -0.00800 0.00700 F16 0.03700 0.02900 0.04600 -0.00200 0.00800 -0.00100 F17 0.04000 0.05500 0.04200 0.00200 0.00400 0.00800