data_global
_chemical_name_mineral 'Annite'
loop_
_publ_author_name
'Laurora A'
'Brigatti M F'
'Mottana A'
'Malferrari D'
'Caprilli E'
_journal_name_full 'American Mineralogist'
_journal_volume 92 
_journal_year 2007
_journal_page_first 468
_journal_page_last 480
_publ_section_title
;
 Crystal chemistry of trioctahedral micas in alkaline and subalkaline volcanic
 rocks: A case study from Mt. Sassetto (Tolfa district, Latium, central Italy)
 Sample: MS8(1)
 Note: 1M polytype
;
_database_code_amcsd 0004300
_chemical_compound_source 'Mt. Sassetto, Tolfa district, Latium, Italy'
_chemical_formula_sum 'K.92 Na.07 Mg1.11 Fe1.35 Ti.18 Al1.34 Si2.72 O12'
_cell_length_a 5.3216
_cell_length_b 9.2114
_cell_length_c 10.1060
_cell_angle_alpha 90
_cell_angle_beta 99.949
_cell_angle_gamma 90
_cell_volume 487.940
_exptl_crystal_density_diffrn      3.084
_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
_atom_site_U_iso_or_equiv
KA   0.00000   0.50000   0.00000   0.92000   0.02900
NaA   0.00000   0.50000   0.00000   0.07000   0.02900
MgM1   0.00000   0.00000   0.50000   0.37000   0.01100
Fe3+M1   0.00000   0.00000   0.50000   0.23000   0.01100
Fe2+M1   0.00000   0.00000   0.50000   0.22000   0.01100
TiM1   0.00000   0.00000   0.50000   0.06000   0.01100
AlM1   0.00000   0.00000   0.50000   0.02000   0.01100
MgM2   0.00000   0.34540   0.50000   0.37000   0.01200
Fe3+M2   0.00000   0.34540   0.50000   0.23000   0.01200
Fe2+M2   0.00000   0.34540   0.50000   0.22000   0.01200
TiM2   0.00000   0.34540   0.50000   0.06000   0.01200
AlM2   0.00000   0.34540   0.50000   0.02000   0.01200
AlT   0.07220   0.16740   0.22210   0.32000   0.01000
SiT   0.07220   0.16740   0.22210   0.68000   0.01000
O1   0.32280   0.23080   0.16460   1.00000   0.02200
O2   0.01500   0.00000   0.16750   1.00000   0.02200
O3   0.12890   0.16990   0.39130   1.00000   0.01400
O4   0.13890   0.50000   0.40290   1.00000   0.01400
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 0.02800 0.02700 0.03100 0.00000 0.00600 0.00000
NaA 0.02800 0.02700 0.03100 0.00000 0.00600 0.00000
MgM1 0.01000 0.01000 0.01500 0.00000 0.00400 0.00000
Fe3+M1 0.01000 0.01000 0.01500 0.00000 0.00400 0.00000
Fe2+M1 0.01000 0.01000 0.01500 0.00000 0.00400 0.00000
TiM1 0.01000 0.01000 0.01500 0.00000 0.00400 0.00000
AlM1 0.01000 0.01000 0.01500 0.00000 0.00400 0.00000
MgM2 0.00900 0.01300 0.01400 0.00000 0.00200 0.00000
Fe3+M2 0.00900 0.01300 0.01400 0.00000 0.00200 0.00000
Fe2+M2 0.00900 0.01300 0.01400 0.00000 0.00200 0.00000
TiM2 0.00900 0.01300 0.01400 0.00000 0.00200 0.00000
AlM2 0.00900 0.01300 0.01400 0.00000 0.00200 0.00000
AlT 0.01000 0.00900 0.01200 0.00000 0.00300 0.00000
SiT 0.01000 0.00900 0.01200 0.00000 0.00300 0.00000
O1 0.02200 0.02400 0.02100 -0.00500 0.00500 -0.00100
O2 0.03000 0.01600 0.02100 0.00000 0.00300 0.00000
O3 0.01300 0.01400 0.01400 0.00000 0.00200 0.00000
O4 0.01400 0.01400 0.01500 0.00000 0.00400 0.00000