data_global _chemical_name_mineral 'Paragonite' loop_ _publ_author_name 'Comodi P' 'Zanazzi P F' _journal_name_full 'Physics and Chemistry of Minerals' _journal_volume 27 _journal_year 2000 _journal_page_first 377 _journal_page_last 385 _publ_section_title ; Structural thermal behavior of paragonite and its dehydroxylate: a high-temperature single-crystal study Sample 2: T = 210 C ; _database_code_amcsd 0008408 _chemical_formula_sum '(Na.91 K.07 Ca.01 Ba.01) Al3.07 Ti.005 Fe.01 Mn.001 Mg.02 Si2.92 O12 H2' _cell_length_a 5.152 _cell_length_b 8.941 _cell_length_c 19.459 _cell_angle_alpha 90 _cell_angle_beta 94.26 _cell_angle_gamma 90 _cell_volume 893.884 _exptl_crystal_density_diffrn 2.865 _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 Na 0.00000 0.09540 0.25000 0.91000 0.05600 K 0.00000 0.09540 0.25000 0.07000 0.05600 Ca 0.00000 0.09540 0.25000 0.01000 0.05600 Ba 0.00000 0.09540 0.25000 0.01000 0.05600 AlM2 0.25000 0.08340 0.00007 0.99500 0.01560 TiM2 0.25000 0.08340 0.00007 0.00250 0.01560 FeM2 0.25000 0.08340 0.00007 0.00500 0.01560 MnM2 0.25000 0.08340 0.00007 0.00050 0.01560 MgM2 0.25000 0.08340 0.00007 0.01000 0.01560 AlT1 0.95140 0.42850 0.14010 0.27000 0.01750 SiT1 0.95140 0.42850 0.14010 0.73000 0.01750 AlT2 0.43840 0.25740 0.14010 0.27000 0.01750 SiT2 0.43840 0.25740 0.14010 0.73000 0.01750 O1 0.95700 0.44400 0.05520 1.00000 0.01720 O2 0.37870 0.25130 0.05540 1.00000 0.01830 O3 0.37660 0.09140 0.17320 1.00000 0.02310 O4 0.74470 0.29920 0.16210 1.00000 0.02610 O5 0.24440 0.37940 0.17370 1.00000 0.02320 O-h 0.95030 0.06260 0.05100 1.00000 0.02060 H 0.86100 0.13400 0.06200 1.00000 0.07000