data_9000302
_chemical_name 'Phlogopite'
loop_
_publ_author_name
'McCauley J W'
'Newnham R E'
'Gibbs G V'
_journal_name_full "American Mineralogist"
_journal_volume 58
_journal_year 1973
_journal_page_first 249
_journal_page_last 254
_publ_section_title
;
 Crystal structure analysis of synthetic fluorophlogopite
;
_chemical_formula_sum 'K Mg3 (Al Si3) O10 F2'
_cell_length_a 5.308
_cell_length_b 9.183
_cell_length_c 10.139
_cell_angle_alpha 90
_cell_angle_beta 100.07
_cell_angle_gamma 90
_cell_volume 486.596
_symmetry_space_group_name_H-M 'C 1 2/m 1'
loop_
_symmetry_equiv_pos_as_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
K   0.00000   0.00000   0.00000   1.00000
Mg1   0.00000   0.50000   0.50000   1.00000
Mg2   0.00000   0.83060   0.50000   1.00000
Al   0.57510   0.16630   0.22450   0.25000
Si   0.57510   0.16630   0.22450   0.75000
O1   0.82080   0.23470   0.16820   1.00000
O2   0.52740   0.00000   0.16780   1.00000
O3   0.62910   0.16610   0.38960   1.00000
F1   0.13270   0.00000   0.40170   1.00000