data_global
_chemical_name_mineral 'Muscovite'
loop_
_publ_author_name
'Catti M'
'Ferraris G'
'Ivaldi G'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 1 
_journal_year 1989
_journal_page_first 625
_journal_page_last 632
_publ_section_title
;
 Thermal strain analysis in the crystal structure of muscovite at 700 C
 T= 700 C
;
_database_code_amcsd 0006359
_chemical_formula_sum 'K.88 Na.11 Al2.84 Fe.06 Mg.02 Si3.08 O12 H2'
_cell_length_a 5.229
_cell_length_b 9.076
_cell_length_c 20.322
_cell_angle_alpha 90
_cell_angle_beta 95.74
_cell_angle_gamma 90
_cell_volume 959.614
_exptl_crystal_density_diffrn      2.754
_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
K   0.00000   0.09830   0.25000   0.88000   0.06586
Na   0.00000   0.09830   0.25000   0.11000   0.06586
Al   0.25170   0.08360   0.00010   0.96000   0.01950
Fe   0.25170   0.08360   0.00010   0.03000   0.01950
Mg   0.25170   0.08360   0.00010   0.01000   0.01950
AlT1   0.46420   0.93060   0.13440   0.23000   0.01912
SiT1   0.46420   0.93060   0.13440   0.77000   0.01912
AlT2   0.45100   0.25900   0.13440   0.23000   0.01887
SiT2   0.45100   0.25900   0.13440   0.77000   0.01887
O1   0.42970   0.09370   0.16700   1.00000   0.03293
O2   0.24020   0.82080   0.15660   1.00000   0.03800
O3   0.23970   0.36290   0.16710   1.00000   0.03420
O4   0.46310   0.94510   0.05340   1.00000   0.02406
O5   0.37950   0.25140   0.05320   1.00000   0.02406
O6   0.45760   0.56220   0.04920   1.00000   0.03420
H   0.37100   0.62700   0.05000   1.00000   0.07979