data_global
_chemical_name_mineral 'Annite'
loop_
_publ_author_name
'Brigatti M F'
'Frigieri P'
'Ghezzo c'
'Poppi L'
_journal_name_full 'American Mineralogist'
_journal_volume 85 
_journal_year 2000
_journal_page_first 436
_journal_page_last 448
_publ_section_title
;
 Crystal chemistry of Al-rich biotites coexisting with muscovites in
 peraluminous granites
 Sample: B1
;
_database_code_amcsd 0002390
_chemical_compound_source 'Tinker Glacier, Northern Victoria Land, Antarctica'
_chemical_formula_sum '(K.95 Na.05) Fe1.44 Mg.84 Ti.16 Al1.9 Si2.64 O12 H1.54'
_cell_length_a 5.336
_cell_length_b 9.239
_cell_length_c 10.200
_cell_angle_alpha 90
_cell_angle_beta 100.29
_cell_angle_gamma 90
_cell_volume 494.765
_exptl_crystal_density_diffrn      3.126
_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
KA   0.00000   0.50000   0.00000   0.95000
NaA   0.00000   0.50000   0.00000   0.05000
Fe2+1   0.00000   0.00000   0.50000   0.58000
Mg1   0.00000   0.00000   0.50000   0.40000
Fe2+2   0.00000   0.33318   0.50000   0.43000
Mg2   0.00000   0.33318   0.50000   0.22000
Ti2   0.00000   0.33318   0.50000   0.08000
Al2   0.00000   0.33318   0.50000   0.27000
SiT   0.07560   0.16702   0.22575   0.66000
AlT   0.07560   0.16702   0.22575   0.34000
O1   0.01690   0.00000   0.17040   1.00000
O2   0.32560   0.23130   0.16850   1.00000
O3   0.13260   0.16870   0.39190   1.00000
O-H4   0.12680   0.50000   0.39780   0.77000
O4   0.12680   0.50000   0.39780   0.23000
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 0.02120 0.00780 0.00710 0.00000 0.00200 0.00000
NaA 0.02120 0.00780 0.00710 0.00000 0.00200 0.00000
Fe2+1 0.00520 0.00191 0.00302 0.00000 0.00113 0.00000
Mg1 0.00520 0.00191 0.00302 0.00000 0.00113 0.00000
Fe2+2 0.00510 0.00278 0.00290 0.00000 0.00048 0.00000
Mg2 0.00510 0.00278 0.00290 0.00000 0.00048 0.00000
Ti2 0.00510 0.00278 0.00290 0.00000 0.00048 0.00000
Al2 0.00510 0.00278 0.00290 0.00000 0.00048 0.00000
SiT 0.00520 0.00225 0.00248 0.00006 0.00053 0.00003
AlT 0.00520 0.00225 0.00248 0.00006 0.00053 0.00003
O1 0.01910 0.00340 0.00390 0.00000 -0.00050 0.00000
O2 0.01250 0.00660 0.00390 -0.00350 0.00160 -0.00060
O3 0.01160 0.00380 0.00260 0.00000 0.00040 0.00000
O-H4 0.01010 0.00600 0.00260 0.00000 0.00000 0.00000
O4 0.01010 0.00600 0.00260 0.00000 0.00000 0.00000