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
 Tanakamiyama
;
_database_code_amcsd 0000852
_chemical_formula_sum 'K Li2 Al1.128 Si3.868 O11 (F H)'
_cell_length_a 5.242
_cell_length_b 9.055
_cell_length_c 10.097
_cell_angle_alpha 90
_cell_angle_beta 100.77
_cell_angle_gamma 90
_cell_volume 470.825
_exptl_crystal_density_diffrn      2.737
_symmetry_space_group_name_H-M 'C 1 2 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'
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
K   0.00000   0.50280   0.00000   1.00000   0.02799
Li1   0.00000  -0.00600   0.50000   1.00000   0.00380
Al2   0.00000   0.32300   0.50000   1.00000   0.00836
Li3   0.50000   0.16100   0.50000   1.00000   0.01646
Si1   0.07560   0.17040   0.23090   0.96700   0.01077
Al1   0.07560   0.17040   0.23090   0.03200   0.01077
Si2   0.58630   0.33380   0.23020   0.96700   0.01102
Al2   0.58630   0.33380   0.23020   0.03200   0.01102
O1   0.04100   0.00200   0.17080   1.00000   0.01938
O2   0.31900   0.24300   0.16900   1.00000   0.02026
O3   0.81300   0.26000   0.16200   1.00000   0.01773
O4   0.11400   0.17500   0.39400   1.00000   0.01393
O5   0.66300   0.32800   0.39110   1.00000   0.01140
F   0.11000   0.47290   0.39850   0.50000   0.01267
O-H6   0.11000   0.47290   0.39850   0.50000   0.01267