data_global
_chemical_name_mineral 'Osumilite-(Mg)'
loop_
_publ_author_name
'Chukanov N V'
'Pekov I V'
'Rastsvetaeva R K'
'Aksenov S M'
'Belakovskiy D I'
'Van K V'
'Schuller V'
'Ternes B'
_journal_name_full 'Zapiski Rossiiskogo Mineralogicheskogo Obshchetstva'
_journal_volume 141 
_journal_year 2012
_journal_page_first 27
_journal_page_last 36
_publ_section_title
;
 Osumilite-(Mg): Validation as a mineral species and new data
;
_database_code_amcsd 0020038
_chemical_compound_source 'Bellerberg, Eifel volcanic area, Germany'
_chemical_formula_sum 'K.72 Na.03 Ca.01 (Mg1.96 Mn.04) Al4.23 Fe.45 Si10.32 O30'
_cell_length_a 10.0959
_cell_length_b 10.0959
_cell_length_c 14.3282
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1264.772
_exptl_crystal_density_diffrn      2.595
_symmetry_space_group_name_H-M 'P 6/m c c'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '-x,-x+y,1/2+z'
  'x,x-y,1/2-z'
  '-x+y,-x,-z'
  'x-y,x,z'
  '-y,-x,1/2+z'
  'y,x,1/2-z'
  'y,-x+y,-z'
  '-y,x-y,z'
  'x-y,-y,1/2+z'
  '-x+y,y,1/2-z'
  'x,y,-z'
  '-x,-y,z'
  'x,x-y,1/2+z'
  '-x,-x+y,1/2-z'
  'x-y,x,-z'
  '-x+y,-x,z'
  'y,x,1/2+z'
  '-y,-x,1/2-z'
  '-y,x-y,-z'
  'y,-x+y,z'
  '-x+y,y,1/2+z'
  'x-y,-y,1/2-z'
  '-x,-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   0.25000   0.72000
Na   0.00000   0.00000   0.25000   0.03000
Ca   0.00000   0.00000   0.25000   0.01000
Mg   0.33333   0.66667   0.25000   0.98000
Mn   0.33333   0.66667   0.25000   0.02000
Al   0.50000   0.00000   0.25000   0.85000
Fe3+   0.50000   0.00000   0.25000   0.15000
Si   0.10590   0.35330   0.10770   0.86000
Al   0.10590   0.35330   0.10770   0.14000
O1   0.12260   0.40730   0.00000   1.00000
O2   0.21730   0.28500   0.13090   1.00000
O3   0.14070   0.49360   0.17880   1.00000
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
K 0.02990 0.02990 0.03520 0.01500 0.00000 0.00000
Na 0.02990 0.02990 0.03520 0.01500 0.00000 0.00000
Ca 0.02990 0.02990 0.03520 0.01500 0.00000 0.00000
Mg 0.00480 0.00480 0.00720 0.00240 0.00000 0.00000
Mn 0.00480 0.00480 0.00720 0.00240 0.00000 0.00000
Al 0.01850 0.00830 0.01160 0.00420 0.00000 0.00000
Fe3+ 0.01850 0.00830 0.01160 0.00420 0.00000 0.00000
Si 0.00820 0.01040 0.00770 0.00500 -0.00010 -0.00140
Al 0.00820 0.01040 0.00770 0.00500 -0.00010 -0.00140
O1 0.02670 0.02090 0.00990 0.01130 0.00000 0.00000
O2 0.02480 0.03170 0.02570 0.02260 0.00050 -0.00190
O3 0.01520 0.01580 0.01330 0.00900 -0.00300 -0.00490