data_global
_chemical_name_mineral 'Vuoriyarvite'
loop_
_publ_author_name
'Rastsvetaeva R K'
'Tamazyan R A'
'Pushcharovskii D Yu'
'Nadezhina T N'
'Voloshin A V'
_journal_name_full 'Crystallography Reports'
_journal_volume 39 
_journal_year 1994
_journal_page_first 908
_journal_page_last 914
_publ_section_title
;
 K-nenadkevichite, a new representative of the nenadkevichite-labuntsovite series
;
_database_code_amcsd 0019135
_chemical_compound_source 'Vuoriyarvi, Kola Peninsula'
_chemical_formula_sum 'Si8 (Nb2.2 Ti1.8) K2.98 Na1.22 O31.15 H10.3'
_cell_length_a 14.692
_cell_length_b 14.164
_cell_length_c 7.859
_cell_angle_alpha 90
_cell_angle_beta 117.87
_cell_angle_gamma 90
_cell_volume 1445.745
_exptl_crystal_density_diffrn      2.684
_symmetry_space_group_name_H-M 'C 1 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'
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
Si1   0.21700   0.89200   0.78000   1.00000   0.01773
Si2   0.69180   0.89160   0.73600   1.00000   0.02153
Si3   0.80550   0.89010   0.18600   1.00000   0.01140
Si4   0.32870   0.89140   0.23000   1.00000   0.01140
Nb1   0.00000   0.76910   0.50000   0.60000   0.00608
Ti1   0.00000   0.76910   0.50000   0.40000   0.00608
Nb2   0.74340   0.74800   0.46440   0.50000   0.00608
Ti2   0.74340   0.74800   0.46440   0.50000   0.00608
K1   0.50010   0.81940   0.98300   0.76000   0.04686
K2   0.43200   0.00000   0.70500   0.53000   0.07092
K3   0.91000   0.00000   0.64900   0.44000   0.03926
K4   0.08100   0.00000   0.28800   0.49000   0.04179
Na1   0.00900   0.00000   0.46800   0.58000   0.06333
Na2   0.79600   0.00000   0.53000   0.39000   0.08486
Na3   0.00600   0.00000   0.11000   0.25000   0.08866
O-H1   0.91100   0.76600   0.58600   1.00000   0.04939
O2   0.92500   0.87300   0.30800   1.00000   0.02153
O3   0.26800   0.86700   0.34100   1.00000   0.01520
O4   0.27400   0.82300   0.70200   1.00000   0.03800
O5   0.42900   0.82600   0.28500   1.00000   0.01393
O6   0.37500   0.00000   0.28000   1.00000   0.03546
O7   0.25100   0.87900   0.00300   1.00000   0.02533
O8   0.22700   0.00000   0.73000   1.00000   0.02913
O9   0.10400   0.76800   0.37200   1.00000   0.00633
O-H10   0.09200   0.87000   0.66500   1.00000   0.02786
O11   0.74700   0.86500   0.60100   1.00000   0.02153
O12   0.73200   0.82400   0.24500   1.00000   0.00887
O13   0.59100   0.82600   0.67200   1.00000   0.02913
O14   0.65600   0.00000   0.71100   1.00000   0.01646
O15   0.77100   0.87200   0.95600   1.00000   0.03293
O16   0.77700   0.00000   0.20400   1.00000   0.02153
Wat1   0.03000   0.87900   0.98100   0.56000   0.03293
Wat2   0.56400   0.00000   0.21000   0.61000   0.05066
Wat3   0.29900   0.00000   0.51000   0.32000   0.03800
Wat4   0.03600   0.82700   0.03000   0.37000   0.08866
Wat5   0.51400   0.00000   0.89000   0.36000   0.05066