data_global _chemical_name_mineral 'Muscovite-2M1' loop_ _publ_author_name 'Brigatti M F' 'Kile D E' 'Poppi M' _journal_name_full 'The Canadian Mineralogist' _journal_volume 39 _journal_year 2001 _journal_page_first 1171 _journal_page_last 1180 _publ_section_title ; Crystal structure and crystal chemistry of lithium-bearing muscovite-2M1 Sample: 39 ; _database_code_amcsd 0005733 _chemical_formula_sum 'O11.9 (F.1 Na.05) Rb.01 K.94 Si3.08 Al2.86 Fe.07 Li.03 Mg.02 H1.9' _cell_length_a 5.193 _cell_length_b 9.016 _cell_length_c 20.114 _cell_angle_alpha 90 _cell_angle_beta 95.77 _cell_angle_gamma 90 _cell_volume 936.968 _exptl_crystal_density_diffrn 2.844 _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 O11 0.75130 0.30930 0.15700 1.00000 0.01874 O21 0.24960 0.36990 0.16860 1.00000 0.01710 O22 0.41750 0.09330 0.16790 1.00000 0.01684 O31 0.38400 0.24970 0.05310 1.00000 0.01393 O32 0.96220 0.44390 0.05340 1.00000 0.01393 O-H4 0.95580 0.06140 0.04990 0.95000 0.01191 F4 0.95580 0.06140 0.04990 0.05000 0.01191 NaA 0.00000 0.09940 0.25000 0.05000 0.02419 RbA 0.00000 0.09940 0.25000 0.01000 0.02419 KA 0.00000 0.09940 0.25000 0.94000 0.02419 SiT1 0.45180 0.25890 0.13530 0.77000 0.01013 AlT1 0.45180 0.25890 0.13530 0.23000 0.01013 SiT2 0.96510 0.43000 0.13519 0.77000 0.00937 AlT2 0.96510 0.43000 0.13519 0.23000 0.00937 AlM2 0.25060 0.08340 0.00004 0.97000 0.01064 FeM2 0.25060 0.08340 0.00004 0.03000 0.01064 FeM1 0.75000 0.25000 0.00000 0.01000 0.03065 LiM1 0.75000 0.25000 0.00000 0.03000 0.03065 MgM1 0.75000 0.25000 0.00000 0.02000 0.03065 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 O11 0.01853 0.02100 0.01623 -0.00496 -0.00052 0.00548 O21 0.01663 0.01977 0.01420 0.00378 0.00105 -0.00091 O22 0.02556 0.01112 0.01420 0.00142 0.00210 0.00091 O31 0.01461 0.01606 0.01217 -0.00047 0.00105 0.00091 O32 0.01095 0.02141 0.01014 0.00189 0.00052 0.00091 O-H4 0.01420 0.00659 0.01623 0.00142 0.00314 -0.00091 F4 0.01420 0.00659 0.01623 0.00142 0.00314 -0.00091 NaA 0.02637 0.02471 0.02232 0.00000 0.00210 0.00000 RbA 0.02637 0.02471 0.02232 0.00000 0.00210 0.00000 KA 0.02637 0.02471 0.02232 0.00000 0.00210 0.00000 SiT1 0.01014 0.00988 0.01014 0.00024 0.00052 0.00091 AlT1 0.01014 0.00988 0.01014 0.00024 0.00052 0.00091 SiT2 0.01001 0.00824 0.01014 -0.00024 0.00105 0.00091 AlT2 0.01001 0.00824 0.01014 -0.00024 0.00105 0.00091 AlM2 0.01041 0.01071 0.01014 -0.00118 0.00105 0.00091 FeM2 0.01041 0.01071 0.01014 -0.00118 0.00105 0.00091