data_global
_chemical_name_mineral 'Paraniite-(Y)'
loop_
_publ_author_name
'Demartin F'
'Gramaccioli C M'
'Pilati T'
_journal_name_full 'Acta Crystallographica, Section C'
_journal_volume 48 
_journal_year 1992
_journal_page_first 1357
_journal_page_last 1359
_publ_section_title
;
 Structure of a new natural tungstate arsenate, [Ca2Y(AsO4)(WO4)2], structurally
 related to scheelite
 Note: anisoU's from ICSD
;
_database_code_amcsd 0010274
_chemical_compound_source 'Alpine fissures, Pizzo Cervandone area, Ossola Valley, Italy'
_chemical_formula_sum 'Ca2 Y As W2 O12'
_cell_length_a 5.135
_cell_length_b 5.135
_cell_length_c 33.8820
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 90
_cell_volume 893.408
_exptl_crystal_density_diffrn      5.975
_symmetry_space_group_name_H-M 'I 41/a'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,1/2+z'
  '3/4+y,1/4-x,1/4-z'
  '1/4+y,3/4-x,3/4-z'
  '3/4-y,1/4+x,1/4+z'
  '1/4-y,3/4+x,3/4+z'
  '1/2+x,y,1/2-z'
  '+x,1/2+y,-z'
  '1/2-x,-y,1/2+z'
  '-x,1/2-y,+z'
  '3/4-y,3/4+x,3/4-z'
  '1/4-y,1/4+x,1/4-z'
  '3/4+y,3/4-x,3/4+z'
  '1/4+y,1/4-x,1/4+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_U_iso_or_equiv
Ca   0.50000   0.25000   0.04167   0.01250
Y   0.00000   0.25000   0.12500   0.00898
As   0.50000   0.75000   0.12500   0.00842
W   0.00000   0.75000   0.04679   0.01032
O1   0.24370   0.88530   0.01600   0.01710
O2   0.15590   0.47840   0.07050   0.01580
O3   0.32200  -0.03400   0.09770   0.02050
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
Ca 0.01360 0.01490 0.00910 0.00350 0.00000 0.00000
Y 0.01080 0.01080 0.00520 0.00000 0.00000 0.00000
As 0.01030 0.01030 0.00470 0.00000 0.00000 0.00000
W 0.01106 0.00951 0.01038 0.00150 0.00000 0.00000
O1 0.02000 0.02000 0.01100 0.00100 0.00200 -0.00100
O2 0.01500 0.01900 0.01300 0.00000 0.00000 0.00200
O3 0.02500 0.02300 0.01400 0.00700 0.00000 0.00200