data_global
_chemical_name_mineral 'Stillwellite-(La)'
loop_
_publ_author_name
'Belokoneva E L'
'Shuvaeva V A'
'Antipin M Yu'
'Leonyuk N I'
_journal_name_full 'Zhurnal Neorganicheskoi Khimii'
_journal_volume 41 
_journal_year 1996
_journal_page_first 1097
_journal_page_last 1101
_publ_section_title
;
 Crystal structure of a high-temperature modification of LaBSiO5,
 a synthetic analog of stillwellite
 Note: T = 473 K
;
_database_code_amcsd 0018732
_chemical_compound_source 'Synthetic'
_chemical_formula_sum 'La4 Si3 B4 O15'
_cell_length_a 6.827
_cell_length_b 6.827
_cell_length_c 6.779
_cell_angle_alpha 90
_cell_angle_beta 90
_cell_angle_gamma 120
_cell_volume 273.625
_exptl_crystal_density_diffrn      5.602
_symmetry_space_group_name_H-M 'P 31 2 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  'y,x,-z'
  '-y,x-y,1/3+z'
  '-x,-x+y,1/3-z'
  '-x+y,-x,2/3+z'
  'x-y,-y,2/3-z'
loop_
_atom_site_label
_atom_site_fract_x
_atom_site_fract_y
_atom_site_fract_z
_atom_site_U_iso_or_equiv
La   0.59880   0.00000   0.33330   0.00900
Si   0.58260   0.00000   0.83330   0.00800
B   0.10900   0.00000   0.33330   0.00900
O1   0.84970   0.65640   0.02820   0.01100
O2   0.86540   0.39610   0.32920   0.01800
O3   0.03700   0.00000   0.83330   0.03100
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
La 0.00900 0.00700 0.01000 0.00300 0.00000 0.00000
Si 0.00800 0.00900 0.00900 0.00500 0.00000 -0.00100
B 0.00900 0.01000 0.00900 0.00500 -0.00100 -0.00100
O1 0.01300 0.00800 0.01700 0.00800 -0.00700 -0.00200
O2 0.02100 0.01200 0.01200 0.00000 0.00000 0.00200
O3 0.02200 0.06100 0.02400 0.03100 0.01500 0.03100