data_global _chemical_name_mineral 'Ferronordite-(Ce)' loop_ _publ_author_name 'Pushcharovsky D Y' 'Pekov I V' 'Pluth J J' 'Smith J' 'Ferraris G' 'Vinogradova S A' 'Arakcheeva A V' 'Soboleva S V' 'Semenov E I' _journal_name_full 'Crystallography Reports' _journal_volume 44 _journal_year 1999 _journal_page_first 565 _journal_page_last 574 _publ_section_title ; Raite, manganonordite-(Ce), and ferronordite-(Ce) from the Lovozero massif: Crystal structures and mineralogical geochemistry ; _database_code_amcsd 0012362 _chemical_compound_source 'Lovozero Massif' _chemical_formula_sum '(Na2.901 Ca.099) (Sr.98 Ba.02) (Ce.51 La.42 Nd.04 Pr.03) (Fe.42 Mn.26 Zn.22 Mg.1) Si6 O17' _cell_length_a 14.46 _cell_length_b 5.194 _cell_length_c 19.8740 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1492.641 _exptl_crystal_density_diffrn 3.534 _symmetry_space_group_name_H-M 'P c c a' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,-y,1/2+z' '-x,y,1/2-z' '1/2-x,y,1/2+z' '1/2+x,-y,1/2-z' '1/2+x,y,-z' '1/2-x,-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 Na1 0.00000 0.00000 0.00000 0.96700 0.01773 Ca1 0.00000 0.00000 0.00000 0.03300 0.01773 Na2 0.07050 0.00790 0.17120 0.96700 0.01963 Ca2 0.07050 0.00790 0.17120 0.03300 0.01963 Sr 0.25000 0.00000 0.02260 0.98000 0.01102 Ba 0.25000 0.00000 0.02260 0.02000 0.01102 Ce 0.25000 0.00000 0.31990 0.51000 0.00722 La 0.25000 0.00000 0.31990 0.42000 0.00722 Nd 0.25000 0.00000 0.31990 0.04000 0.00722 Pr 0.25000 0.00000 0.31990 0.03000 0.00722 Fe 0.25000 0.50000 0.17000 0.42000 0.00861 Mn 0.25000 0.50000 0.17000 0.26000 0.00861 Zn 0.25000 0.50000 0.17000 0.22000 0.00861 Mg 0.25000 0.50000 0.17000 0.10000 0.00861 Si1 0.09830 0.46230 0.06430 1.00000 0.00608 Si2 0.10170 0.54120 0.27490 1.00000 0.00608 Si3 0.11160 0.54560 -0.08130 1.00000 0.00608 O1 0.99580 0.33610 0.08220 1.00000 0.00937 O2 0.17050 0.29950 0.10860 1.00000 0.01153 O3 0.11790 0.35650 -0.01470 1.00000 0.00988 O4 0.10240 0.76720 0.06740 1.00000 0.01165 O5 0.00000 0.64200 0.25000 1.00000 0.00899 O6 0.17680 0.71390 0.23380 1.00000 0.01051 O7 0.11710 0.65000 0.35340 1.00000 0.00912 O8 0.11570 0.23950 0.27200 1.00000 0.01355 O9 0.18540 0.22750 0.41800 1.00000 0.01203