data_global
_chemical_name_mineral 'Muscovite'
loop_
_publ_author_name
'Elmi C'
'Brigatti M F'
'Guggenheim S'
'Pasquali L'
'Montecchi M'
'Malferrari D'
'Nannarone S'
_journal_name_full 'The Canadian Mineralogist'
_journal_volume 51 
_journal_year 2013
_journal_page_first 5
_journal_page_last 14
_publ_section_title
;
 Sodian muscovite-2M1: crystal chemistry and surface features
;
_database_code_amcsd 0019832
_chemical_compound_source 'pegmatite in Northern Victoria Land, Antarctica'
_chemical_formula_sum '(K.865 Na.135) Al2.842 Fe.07 Mg.036 Ti.006 Si3.044 O11.946 (F.054 H1.946)'
_cell_length_a 5.1969
_cell_length_b 9.0138
_cell_length_c 20.0835
_cell_angle_alpha 90
_cell_angle_beta 95.763
_cell_angle_gamma 90
_cell_volume 936.033
_exptl_crystal_density_diffrn      2.826
_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
KA   0.00000   0.09860   0.25000   0.86500   0.02200
NaA   0.00000   0.09860   0.25000   0.13500   0.02200
AlM2   0.24970   0.08330   0.00000   0.94300   0.00800
Fe2+M2   0.24970   0.08330   0.00000   0.03500   0.00800
MgM2   0.24970   0.08330   0.00000   0.01800   0.00800
TiM2   0.24970   0.08330   0.00000   0.00300   0.00800
SiT1   0.45150   0.25850   0.13540   0.76100   0.01000
AlT1   0.45150   0.25850   0.13540   0.23900   0.01000
SiT2   0.96500   0.42970   0.13540   0.76100   0.00800
AlT2   0.96500   0.42970   0.13540   0.23900   0.00800
O1   0.74970   0.31120   0.15750   1.00000   0.01800
O2   0.24960   0.37010   0.16870   1.00000   0.01700
O21   0.41730   0.09340   0.16820   1.00000   0.01700
O3   0.38500   0.25180   0.05350   1.00000   0.01200
O31   0.96120   0.44380   0.05330   1.00000   0.01200
O-H4   0.95740   0.06220   0.05010   0.97300   0.01300
F4   0.95740   0.06220   0.05010   0.02700   0.01300
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
KA 0.02300 0.02200 0.02100 0.00000 0.00200 0.00000
NaA 0.02300 0.02200 0.02100 0.00000 0.00200 0.00000
AlM2 0.00700 0.00700 0.00900 0.00000 0.00100 0.00100
Fe2+M2 0.00700 0.00700 0.00900 0.00000 0.00100 0.00100
MgM2 0.00700 0.00700 0.00900 0.00000 0.00100 0.00100
TiM2 0.00700 0.00700 0.00900 0.00000 0.00100 0.00100
SiT1 0.00900 0.00900 0.01200 0.00000 0.00100 0.00000
AlT1 0.00900 0.00900 0.01200 0.00000 0.00100 0.00000
SiT2 0.00800 0.00700 0.01000 0.00000 0.00100 0.00000
AlT2 0.00800 0.00700 0.01000 0.00000 0.00100 0.00000
O1 0.01600 0.02000 0.01800 -0.00300 -0.00100 0.00400
O2 0.01500 0.01900 0.01600 0.00400 0.00000 -0.00100
O21 0.02200 0.01200 0.01500 0.00100 0.00300 0.00100
O3 0.01300 0.01000 0.01200 0.00000 0.00100 0.00000
O31 0.01100 0.01300 0.01200 0.00100 0.00100 0.00000
O-H4 0.01200 0.01300 0.01500 -0.00100 0.00200 -0.00300
F4 0.01200 0.01300 0.01500 -0.00100 0.00200 -0.00300