data_global
_chemical_name_mineral 'Agakhanovite-(Y)'
loop_
_publ_author_name
'Hawthorne F C'
'Abdu Y A'
'Ball N A'
'Cerny P'
'Kristiansen R'
_journal_name_full 'American Mineralogist'
_journal_volume 99 
_journal_year 2014
_journal_page_first 2084
_journal_page_last 2088
_publ_section_title
;
 Agakhanovite-(Y), ideally (YCa)2KBe3Si12O30, a new milarite-group mineral from the
 Heftetjern pegmatite, Tordal, Southern Norway: description and crystal structure
;
_database_code_amcsd 0020413
_chemical_compound_source 'Heftetjern pegmatite, Tordal, Norway'
_chemical_formula_sum 'Y.91 Yb.01 Ca1.08 O30.92 Na.02 K (Be2.93 Al.07) Si12 H1.84'
_cell_length_a 10.3476
_cell_length_b 10.3476
_cell_length_c 13.7610
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 1276.027
_exptl_crystal_density_diffrn      2.674
_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
_atom_site_U_iso_or_equiv
Y1   0.33333   0.66667   0.23630   0.22750   0.00940
Yb1   0.33333   0.66667   0.23630   0.00250   0.00940
Ca1   0.33333   0.66667   0.23630   0.27000   0.00940
Wat1   0.33333   0.66667   0.05450   0.23000   0.03900
Na1   0.33333   0.66667   0.05450   0.00500   0.03900
K   0.00000   0.00000   0.25000   1.00000   0.01980
Be1   0.00000   0.50000   0.25000   0.97670   0.00910
Al1   0.00000   0.50000   0.25000   0.02330   0.00910
Si1   0.08107   0.33803   0.11267   1.00000   0.00862
O1   0.09370   0.38670   0.00000   1.00000   0.01990
O2   0.19548   0.27738   0.13342   1.00000   0.01810
O3   0.11552   0.47476   0.18233   1.00000   0.01170
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
Y1 0.00710 0.00710 0.01390 0.00356 0.00000 0.00000
Yb1 0.00710 0.00710 0.01390 0.00356 0.00000 0.00000
Ca1 0.00710 0.00710 0.01390 0.00356 0.00000 0.00000
Wat1 0.04400 0.04400 0.03100 0.02180 0.00000 0.00000
Na1 0.04400 0.04400 0.03100 0.02180 0.00000 0.00000
K 0.01870 0.01870 0.02200 0.00930 0.00000 0.00000
Be1 0.00910 0.00920 0.00880 0.00450 0.00000 0.00000
Al1 0.00910 0.00920 0.00880 0.00450 0.00000 0.00000
Si1 0.00820 0.01060 0.00720 0.00484 -0.00024 -0.00127
O1 0.03080 0.02110 0.00760 0.01300 0.00000 0.00000
O2 0.01730 0.02470 0.01930 0.01580 -0.00310 -0.00490
O3 0.01230 0.01320 0.01110 0.00750 0.00010 -0.00310