data_global
_chemical_name_mineral 'Lepidolite-1M'
loop_
_publ_author_name
'Guggenheim S'
_journal_name_full 'American Mineralogist'
_journal_volume 66 
_journal_year 1981
_journal_page_first 1221
_journal_page_last 1232
_publ_section_title
;
 Cation ordering in lepidolite
 type 1M  from Radkovice
;
_database_code_amcsd 0000851
_chemical_formula_sum 'K Li1.56 Al1.808 Si3.492 O10 F2'
_cell_length_a 5.209
_cell_length_b 9.011
_cell_length_c 10.149
_cell_angle_alpha 90
_cell_angle_beta 100.77
_cell_angle_gamma 90
_cell_volume 467.986
_exptl_crystal_density_diffrn      2.802
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,z'
  '1/2+x,1/2-y,z'
  '-x,y,-z'
  '1/2-x,1/2+y,-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
K   0.00000   0.50000   0.00000   1.00000
Li1   0.00000   0.00000   0.50000   1.00000
Al2   0.00000   0.32890   0.50000   0.65000
Li2   0.00000   0.32890   0.50000   0.28000
Si   0.08100   0.16860   0.23203   0.87300
Al   0.08100   0.16860   0.23203   0.12700
O1   0.02180   0.00000   0.17500   1.00000
O2   0.32520   0.23190   0.16800   1.00000
O3   0.14180   0.17680   0.39450   1.00000
F   0.10760   0.50000   0.40170   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
K 0.02521 0.02448 0.02614 0.00000 0.00388 0.00000
Li1 0.02521 0.02057 0.02619 0.00000 0.00853 0.00000
Al2 0.00822 0.00950 0.01073 0.00000 0.00129 0.00000
Li2 0.00822 0.00950 0.01073 0.00000 0.00129 0.00000
Si 0.00862 0.00860 0.01113 -0.00028 0.00150 -0.00005
Al 0.00862 0.00860 0.01113 -0.00028 0.00150 -0.00005
O1 0.02640 0.01193 0.01561 0.00000 -0.00026 0.00000
O2 0.01499 0.02304 0.01914 -0.00654 0.00414 -0.00137
O3 0.02255 0.01522 0.01123 -0.00280 0.00103 -0.00046
F 0.01658 0.05800 0.01511 0.00000 0.00284 0.00000