data_global
_chemical_name_mineral 'Phengite-3T'
loop_
_publ_author_name
'Ivaldi G'
'Ferraris G'
'Curetti N'
'Compagnoni R'
_journal_name_full 'European Journal of Mineralogy'
_journal_volume 13 
_journal_year 2001
_journal_page_first 1025
_journal_page_last 1034
_publ_section_title
;
 Coexisting 3T and 2M_1 polytypes of phengite from Cima Pal (Val Savenca, western Alps):
 Chemical and polytypic zoning and structural characterisation
 Sample: 3TY
;
_database_code_amcsd 0006912
_chemical_compound_source 'Cima Pal, Val Savenca, western Alps'
_chemical_formula_sum 'K.9 Na.05 Al2.11 Mg.32 Fe.18 Ti.03 Si3.4 O12 H2'
_cell_length_a 5.220
_cell_length_b 5.220
_cell_length_c 29.762
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 702.318
_exptl_crystal_density_diffrn      2.852
_symmetry_space_group_name_H-M 'P 31 1 2'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x+y,y,1/3-z'
  '-y,x-y,1/3+z'
  '-y,-x,2/3-z'
  '-x+y,-x,2/3+z'
  'x,x-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
KI   0.12810   0.25620   0.16667   0.90000   0.02540
NaI   0.12810   0.25620   0.16667   0.05000   0.02540
AlM2   0.79690   0.89840   0.00000   0.75500   0.01010
MgM2   0.79690   0.89840   0.00000   0.16000   0.01010
FeM2   0.79690   0.89840   0.00000   0.09000   0.01010
TiM2   0.79690   0.89840   0.00000   0.01500   0.01010
AlM3   0.45590   0.22800   0.00000   0.75500   0.01080
MgM3   0.45590   0.22800   0.00000   0.16000   0.01080
FeM3   0.45590   0.22800   0.00000   0.09000   0.01080
TiM3   0.45590   0.22800   0.00000   0.01500   0.01080
SiT1   0.78630   0.58130   0.09037   0.85000   0.00860
AlT1   0.78630   0.58130   0.09037   0.15000   0.00860
SiT2   0.46810   0.92160   0.09037   0.85000   0.00940
AlT2   0.46810   0.92160   0.09037   0.15000   0.00940
O1   0.65700   0.77970   0.11310   1.00000   0.01670
O2   0.12740   0.71330   0.10710   1.00000   0.01860
O3   0.59670   0.25030   0.11270   1.00000   0.01680
O4   0.75120   0.56740   0.03600   1.00000   0.01370
O5   0.50330   0.94120   0.03610   1.00000   0.01370
O6   0.12450   0.19080   0.03480   1.00000   0.01460
H   0.14000   0.32000   0.03800   1.00000   0.07000