data_global _chemical_name_mineral 'Zirconolite' loop_ _publ_author_name 'Mazzi F' 'Munno R' _journal_name_full 'American Mineralogist' _journal_volume 68 _journal_year 1983 _journal_page_first 262 _journal_page_last 276 _publ_section_title ; Calciobetafite (new mineral of the pyrochlore group) and related minerals from Campi Flegrei, Italy; crystal structures of polymignyte and zirkelite: comparison with pyrochlore and zirconolite Note: polytype zirconolite-3O ; _database_code_amcsd 0000892 _chemical_compound_source 'Campi Flegrei, Italy' _chemical_formula_sum '(Ca1.058 Na.09 Th.034 Ce.818) Zr2 (Ti2.273 Nb.707 Ta.02) Fe.982 O14' _cell_length_a 10.148 _cell_length_b 14.147 _cell_length_c 7.278 _cell_angle_alpha 90 _cell_angle_beta 90 _cell_angle_gamma 90 _cell_volume 1044.857 _exptl_crystal_density_diffrn 5.126 _symmetry_space_group_name_H-M 'A c a m' loop_ _space_group_symop_operation_xyz 'x,y,z' 'x,1/2+y,1/2+z' '1/2+x,1/2-y,z' '1/2+x,-y,1/2+z' '1/2-x,1/2+y,-z' '1/2-x,+y,1/2-z' 'x,y,-z' 'x,1/2+y,1/2-z' '-x,-y,z' '-x,1/2-y,1/2+z' '1/2-x,1/2+y,z' '1/2-x,+y,1/2+z' '1/2+x,1/2-y,-z' '1/2+x,-y,1/2-z' '-x,-y,-z' '-x,1/2-y,1/2-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 Ca1 0.75000 0.11594 0.25000 0.52900 ? Na1 0.75000 0.11594 0.25000 0.04500 ? Th1 0.75000 0.11594 0.25000 0.01700 ? Ce1 0.75000 0.11594 0.25000 0.40900 ? Zr1 0.01505 0.23319 0.50000 1.00000 ? Ti1 0.00000 0.00000 0.00000 0.51700 ? Nb1 0.00000 0.00000 0.00000 0.46900 ? Ta1 0.00000 0.00000 0.00000 0.01400 ? Ti2 0.25000 0.13323 0.25000 0.87800 ? Nb2 0.25000 0.13323 0.25000 0.11900 ? Ta2 0.25000 0.13323 0.25000 0.00300 ? Fe1 0.00000 0.00000 0.43060 0.46200 ? Fe2 0.03900 0.01500 0.50000 0.02900 0.00380 O1 0.12590 0.03330 0.19030 1.00000 ? O2 0.11970 0.23310 0.21040 1.00000 ? O3 -0.10070 0.10890 0.50000 1.00000 ? O4 -0.09040 0.12950 0.00000 1.00000 ? O5 0.17990 0.13960 0.50000 1.00000 ? 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 Ca1 0.00730 0.00913 0.00778 0.00000 0.00075 0.00000 Na1 0.00730 0.00913 0.00778 0.00000 0.00075 0.00000 Th1 0.00730 0.00913 0.00778 0.00000 0.00075 0.00000 Ce1 0.00730 0.00913 0.00778 0.00000 0.00075 0.00000 Zr1 0.00678 0.00507 0.00886 -0.00073 0.00000 0.00000 Ti1 0.00783 0.00913 0.01315 -0.00073 0.00000 0.00000 Nb1 0.00783 0.00913 0.01315 -0.00073 0.00000 0.00000 Ta1 0.00783 0.00913 0.01315 -0.00073 0.00000 0.00000 Ti2 0.00678 0.00811 0.00698 0.00000 0.00075 0.00000 Nb2 0.00678 0.00811 0.00698 0.00000 0.00075 0.00000 Ta2 0.00678 0.00811 0.00698 0.00000 0.00075 0.00000 Fe1 0.02661 0.01622 0.03220 0.01527 0.00000 0.00000 O1 0.00835 0.01115 0.01691 0.00145 -0.00412 -0.00052 O2 0.00887 0.00913 0.01717 0.00364 -0.00150 0.00156 O3 0.01096 0.00811 0.01771 -0.00145 0.00000 0.00000 O4 0.01304 0.00913 0.01047 -0.00145 0.00000 0.00000 O5 0.01252 0.01622 0.00725 0.00436 0.00000 0.00000