data_global _chemical_name_mineral 'Rinkite' loop_ _publ_author_name 'Bellezza M' 'Merlino S' 'Perchiazzi N' 'Raade G' _journal_name_full 'Atti della Societa Toscana di Scienze Naturali, Memorie, Serie A' _journal_volume 114 _journal_year 2009 _journal_page_first 1 _journal_page_last 3 _publ_section_title ; <>: a chemical and structural study ; _database_code_amcsd 0017796 _chemical_compound_source 'Barkevik skerry, Langesundsfjord, Norway' _chemical_formula_sum 'Ca4.28 Na1.82 Ce.9 (Ti.86 Zr.09 Nb.05) Si4 O15.3 F2.7' _cell_length_a 7.421 _cell_length_b 5.709 _cell_length_c 19.019 _cell_angle_alpha 90 _cell_angle_beta 101.23 _cell_angle_gamma 90 _cell_volume 790.340 _exptl_crystal_density_diffrn 3.370 _symmetry_space_group_name_H-M 'P 1 21/c 1' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2-y,1/2+z' '-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 _atom_site_occupancy _atom_site_U_iso_or_equiv CaM2 0.50000 0.00000 0.00000 0.10000 0.04230 NaM3 0.75470 0.50100 0.00110 0.46000 0.05332 CaM3 0.75470 0.50100 0.00110 0.54000 0.05332 CaM4 0.09350 0.66240 0.19121 0.71000 0.03888 CeM4 0.09350 0.66240 0.19121 0.29000 0.03888 CaM5 0.59720 0.66600 0.19122 0.84000 0.04002 CeM5 0.59720 0.66600 0.19122 0.16000 0.04002 TiM1 0.00000 0.00000 0.00000 0.86000 0.04369 ZrM1 0.00000 0.00000 0.00000 0.09000 0.04369 NbM1 0.00000 0.00000 0.00000 0.05000 0.04369 NaM2 0.50000 0.00000 0.00000 0.90000 0.04230 Si1 0.35110 0.15600 0.13998 1.00000 0.03382 Si2 0.78450 0.15540 0.13785 1.00000 0.03394 O1 0.21970 0.15110 0.06120 1.00000 0.04977 O2 0.83090 0.14190 0.05804 1.00000 0.04610 O3 0.33790 0.39720 0.18387 1.00000 0.04648 O4 0.84290 0.40180 0.17807 1.00000 0.05117 O5 0.33340 0.93520 0.19159 1.00000 0.04293 O6 0.85610 0.93860 0.19143 1.00000 0.04116 O7 0.55850 0.14150 0.12134 1.00000 0.04800 FOF1 0.03080 0.70120 0.06006 0.55000 0.04699 OOF1 0.03080 0.70120 0.06006 0.45000 0.04699 FOF2 0.52790 0.65550 0.06071 0.80000 0.05623 OOF2 0.52790 0.65550 0.06071 0.20000 0.05623