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: 129
;
_database_code_amcsd 0005737
_chemical_formula_sum 'O11.42 (F.58 Na.02) Rb.01 K.97 Si3.28 Al2.16 Fe.42 Li.38 Mg.01 H1.42'
_cell_length_a 5.224
_cell_length_b 9.081
_cell_length_c 19.952
_cell_angle_alpha 90
_cell_angle_beta 95.63
_cell_angle_gamma 90
_cell_volume 941.940
_exptl_crystal_density_diffrn      2.899
_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   0.73770   0.32920   0.16110   1.00000   0.02609
O21   0.23680   0.35980   0.16850   1.00000   0.02394
O22   0.44460   0.09450   0.16830   1.00000   0.02267
O31   0.39690   0.25270   0.05410   1.00000   0.02280
O32   0.95670   0.43680   0.05410   1.00000   0.02077
O-H4   0.95130   0.06500   0.05150   0.71000   0.03344
F4   0.95130   0.06500   0.05150   0.29000   0.03344
NaA   0.00000   0.09500   0.25000   0.02000   0.03154
RbA   0.00000   0.09500   0.25000   0.01000   0.03154
KA   0.00000   0.09500   0.25000   0.97000   0.03154
SiT1   0.45460   0.25840   0.13563   0.82000   0.01469
AlT1   0.45460   0.25840   0.13563   0.18000   0.01469
SiT2   0.96400   0.42930   0.13553   0.82000   0.01368
AlT2   0.96400   0.42930   0.13553   0.18000   0.01368
FeM2   0.25100   0.08260   0.00003   0.10000   0.01456
AlM2   0.25100   0.08260   0.00003   0.72000   0.01456
LiM2   0.25100   0.08260   0.00003   0.18000   0.01456
FeM1   0.75000   0.25000   0.00000   0.22000   0.02584
LiM1   0.75000   0.25000   0.00000   0.02000   0.02584
MgM1   0.75000   0.25000   0.00000   0.01000   0.02584
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 0.02068 0.02799 0.02996 -0.00622 0.00105 0.00457
O21 0.02204 0.01671 0.03395 0.00981 0.00209 -0.00548
O22 0.02369 0.01504 0.02996 0.00096 0.00366 0.00183
O31 0.02109 0.02924 0.01798 -0.00239 0.00261 0.00639
O32 0.01712 0.02047 0.02397 -0.00263 0.00209 0.00822
O-H4 0.04477 0.03300 0.02397 -0.00287 0.00523 -0.00091
F4 0.04477 0.03300 0.02397 -0.00287 0.00523 -0.00091
NaA 0.02834 0.02883 0.03795 0.00000 0.00261 0.00000
RbA 0.02834 0.02883 0.03795 0.00000 0.00261 0.00000
KA 0.02834 0.02883 0.03795 0.00000 0.00261 0.00000
SiT1 0.01287 0.01253 0.01798 0.00072 0.00157 0.00091
AlT1 0.01287 0.01253 0.01798 0.00072 0.00157 0.00091
SiT2 0.01424 0.00585 0.02197 -0.00048 0.00261 0.00091
AlT2 0.01424 0.00585 0.02197 -0.00048 0.00261 0.00091
FeM2 0.01328 0.01253 0.01798 0.00072 0.00209 0.00183
AlM2 0.01328 0.01253 0.01798 0.00072 0.00209 0.00183
LiM2 0.01328 0.01253 0.01798 0.00072 0.00209 0.00183