data_global _chemical_name_mineral 'Normandite' loop_ _publ_author_name 'Biagioni C' 'Merlino S' 'Parodi G C' 'Perchiazzi N' _journal_name_full 'The Canadian Mineralogist' _journal_volume 50 _journal_year 2012 _journal_page_first 593 _journal_page_last 609 _publ_section_title ; Crystal chemistry of minerals of the wohlerite group from the Los Archipelago, Guinea ; _database_code_amcsd 0019477 _chemical_compound_source 'the nepheline syenites of the Los Archipelago, Guinea' _chemical_formula_sum 'Zr.2 Ti1.075 Mn.725 (Ca.824 Na1.176) Si2 O8 F' _cell_length_a 10.8044 _cell_length_b 9.7945 _cell_length_c 7.0532 _cell_angle_alpha 90 _cell_angle_beta 108.056 _cell_angle_gamma 90 _cell_volume 709.639 _exptl_crystal_density_diffrn 3.489 _symmetry_space_group_name_H-M 'P 1 21/a 1' loop_ _space_group_symop_operation_xyz 'x,y,z' '1/2+x,1/2-y,z' '1/2-x,1/2+y,-z' '-x,-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 Zr1 0.28372 0.10239 0.02103 0.20000 0.00707 Ti1 0.28372 0.10239 0.02103 0.80000 0.00707 Mn2 0.43672 0.36674 0.85795 0.72500 0.01098 Ti2 0.43672 0.36674 0.85795 0.27500 0.01098 Ca3 0.30036 0.10841 0.52440 0.70600 0.01164 Na3 0.30036 0.10841 0.52440 0.29400 0.01164 Ca4 0.42433 0.37808 0.33840 0.11800 0.01630 Na4 0.42433 0.37808 0.33840 0.88200 0.01630 Si1 0.62040 0.16354 0.21053 1.00000 0.00707 Si2 0.62101 0.16562 0.67011 1.00000 0.00709 O1 0.64377 0.15860 0.45145 1.00000 0.01550 O2 0.73935 0.26300 0.20008 1.00000 0.01168 O3 0.74623 0.25438 0.80128 1.00000 0.01174 O4 0.65222 0.00956 0.15779 1.00000 0.01270 O5 0.63326 0.00772 0.74318 1.00000 0.01270 O6 0.47691 0.21983 0.09716 1.00000 0.01102 O7 0.48457 0.23613 0.64759 1.00000 0.01250 O8 0.62659 0.47435 0.95688 1.00000 0.01300 F9 0.38993 0.50585 0.60015 1.00000 0.01656 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 Zr1 0.00842 0.00559 0.00718 0.00106 0.00239 0.00035 Ti1 0.00842 0.00559 0.00718 0.00106 0.00239 0.00035 Mn2 0.01173 0.01034 0.01100 -0.00066 0.00372 -0.00023 Ti2 0.01173 0.01034 0.01100 -0.00066 0.00372 -0.00023 Ca3 0.01096 0.01173 0.01180 -0.00238 0.00291 -0.00074 Na3 0.01096 0.01173 0.01180 -0.00238 0.00291 -0.00074 Ca4 0.01620 0.01630 0.01640 -0.00410 0.00500 -0.00180 Na4 0.01620 0.01630 0.01640 -0.00410 0.00500 -0.00180 Si1 0.00745 0.00691 0.00680 0.00045 0.00212 0.00022 Si2 0.00710 0.00673 0.00720 -0.00017 0.00184 0.00006 O1 0.01730 0.02230 0.00750 0.00100 0.00450 0.00060 O2 0.01060 0.00990 0.01480 -0.00070 0.00430 0.00270 O3 0.00980 0.01140 0.01290 -0.00170 0.00180 -0.00370 O4 0.01610 0.00790 0.01510 0.00160 0.00620 -0.00150 O5 0.01510 0.00910 0.01290 0.00090 0.00280 0.00280 O6 0.00880 0.01090 0.01260 0.00090 0.00210 0.00160 O7 0.00870 0.01070 0.01750 0.00040 0.00330 -0.00170 O8 0.00970 0.01330 0.01550 0.00160 0.00300 0.00230 F9 0.01200 0.01510 0.02110 0.00150 0.00300 -0.00080