data_global
_chemical_name_mineral 'Phlogopite'
loop_
_publ_author_name
'Ventruti G'
'Zema M'
'Scordari F'
'Pedrazzi G'
_journal_name_full 'American Mineralogist'
_journal_volume 93 
_journal_year 2008
_journal_page_first 632
_journal_page_last 643
_publ_section_title
;
 Thermal behavior of a Ti-rich phlogopite from Mt. Vulture (Potenza, Italy):
 An in situ X-ray single-crystal diffraction study
 Sample: T = 873 K
;
_database_code_amcsd 0004553
_chemical_compound_source 'trioctahedral mica, Cava St. Antonia, Mt. Vulture, Potenza, Italy'
_chemical_formula_sum 'K (Mg2.214 Fe.786) Si2.696 Al1.225 O12'
_cell_length_a 5.3583
_cell_length_b 9.2866
_cell_length_c 10.2960
_cell_angle_alpha 90
_cell_angle_beta 100.081
_cell_angle_gamma 90
_cell_volume 504.423
_exptl_crystal_density_diffrn      2.881
_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
K   0.00000   0.50000   0.00000   1.03310   0.07900
MgM1   0.00000   0.00000   0.50000   0.73830   0.02180
FeM1   0.00000   0.00000   0.50000   0.26170   0.02180
MgM2   0.00000   0.33640   0.50000   0.73780   0.02290
FeM2   0.00000   0.33640   0.50000   0.26220   0.02290
Si   0.07610   0.16680   0.22770   0.67390   0.01980
Al   0.07610   0.16680   0.22770   0.30630   0.01980
O1   0.31700   0.24150   0.16790   1.00000   0.03800
O2   0.03800   0.00000   0.17200   1.00000   0.03600
O3   0.13080   0.16820   0.39180   1.00000   0.02500
O4   0.13100   0.50000   0.39920   1.00000   0.02400