data_global
_chemical_name_mineral 'Intersilite'
loop_
_publ_author_name
'Yamnova N A'
'Egorov-Tismenko Y K'
'Khomyakov A P'
_journal_name_full 'Crystallography Reports'
_journal_volume 41 
_journal_year 1996
_journal_page_first 239
_journal_page_last 244
_publ_section_title
;
 Crystal structure of a new natural (Na,Mn,Ti)-phyllosilicate
;
_database_code_amcsd 0012349
_chemical_compound_source 'Aluaiv, Lovozero alkaline massif, Kola peninsula, Russia'
_chemical_formula_sum '(Mn.94 Fe.04 Ca.02) (Ti.75 Nb.25) Si10 Na5.8 K.45 (O32 H13)'
_cell_length_a 13.033
_cell_length_b 18.717
_cell_length_c 12.264
_cell_angle_alpha 90
_cell_angle_beta 99.62
_cell_angle_gamma 90
_cell_volume 2949.594
_exptl_crystal_density_diffrn      2.411
_symmetry_space_group_name_H-M 'I 1 2/m 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  'x,-y,z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,-z'
  '1/2-x,1/2+y,1/2-z'
  '-x,-y,-z'
  '1/2-x,1/2-y,1/2-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
Mn   0.50000   0.58590   0.00000   0.94000   0.01292
Fe   0.50000   0.58590   0.00000   0.04000   0.01292
Ca   0.50000   0.58590   0.00000   0.02000   0.01292
Ti   0.00000   0.08420   0.00000   0.75000   0.02799
Nb   0.00000   0.08420   0.00000   0.25000   0.02799
Si1   0.22990   0.08180   0.14360   1.00000   0.00912
Si2   0.69730   0.41790   0.20050   1.00000   0.00659
Si3   0.71880   0.68530   0.02020   1.00000   0.00785
Si4   0.17450   0.30840   0.18690   1.00000   0.02191
Si5   0.79290   0.16020   0.07410   1.00000   0.00836
Na1   0.00000   0.25810   0.00000   1.00000   0.03546
Na2   0.03090   0.16950   0.25670   1.00000   0.02026
Na3   0.97450   0.00000   0.74780   1.00000   0.01773
Na4   0.50000   0.22830   0.00000   1.00000   0.05066
Na5   0.69290   0.00000   0.55540   0.25000   0.07979
K5   0.69290   0.00000   0.55540   0.25000   0.07979
Na6   0.62530   0.00000   0.06340   0.55000   0.05446
K6   0.62530   0.00000   0.06340   0.20000   0.05446
O-H1   0.92920   0.00000   0.06310   1.00000   0.02406
O2   0.27440   0.00000   0.14520   1.00000   0.01773
Wat3   0.91300   0.00000   0.54200   1.00000   0.04179
O4   0.10860   0.08660   0.14410   1.00000   0.01646
O5   0.57330   0.41060   0.16400   1.00000   0.01140
O6   0.39750   0.33060   0.03670   1.00000   0.02280
O7   0.91630   0.16410   0.07230   1.00000   0.01773
O8   0.26630   0.11990   0.03790   1.00000   0.01773
Wat9   0.55400   0.20490   0.18800   1.00000   0.09372
O10   0.76260   0.11350   0.17610   1.00000   0.01520
O11   0.19530   0.31650   0.06120   1.00000   0.02026
O12   0.24030   0.00000   0.70350   1.00000   0.01013
O13   0.00000   0.40000   0.00000   1.00000   0.12665
O14   0.29740   0.11500   0.25300   1.00000   0.02786
O15   0.75930   0.37460   0.11590   1.00000   0.01267
O16   0.73190   0.23540   0.07940   1.00000   0.02026
O17   0.75000   0.25000   0.75000   1.00000   0.10765
O-H18   0.05650   0.29430   0.18230   1.00000   0.08486
Wat19   0.50000   0.10280   0.00000   1.00000   0.12538
Wat20   0.58200   0.00000   0.68800   1.00000   0.07472