data_global
_chemical_name_mineral 'Spodumene'
loop_
_publ_author_name
'Cameron M'
'Sueno S'
'Prewitt C T'
'Papike J J'
_journal_name_full 'American Mineralogist'
_journal_volume 58
_journal_year 1973
_journal_page_first 594
_journal_page_last 618
_publ_section_title
;
 High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite,
 spodumene, and ureyite
 T = 460 C
 pyroxene
;
_database_code_amcsd 357
_chemical_formula_sum 'Si2 Al Li O6'
_cell_length_a 9.473
_cell_length_b 8.43
_cell_length_c 5.229
_cell_angle_alpha 90.0
_cell_angle_beta 109.99
_cell_angle_gamma 90.0
_cell_volume 392.416
_exptl_crystal_density_diffrn  3.15
_symmetry_space_group_name_H-M 'C 1 2/c 1'
loop_
_space_group_symop_operation_xyz
  'x,y,z'
  '1/2+x,1/2+y,z'
  'x,-y,1/2+z'
  '1/2+x,1/2-y,1/2+z'
  '-x,y,1/2-z'
  '1/2-x,1/2+y,1/2-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
Si   0.2943  0.0931  0.2537
Al1   0.0  0.9054  0.25
Li2   0.0  0.275  0.25
O1   0.1104  0.0815  0.1394
O2   0.365  0.2656  0.3014
O3   0.3565  0.9896  0.0526
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
Si   0.00755  0.00956  0.0071  -0.00116  0.00287  -0.00045
Al1   0.009  0.00941  0.00839  0.0  0.0031  0.0
Li2   0.0349  0.03686  0.03412  0.0  0.00955  0.0
O1   0.00748  0.01335  0.01015  -0.00088  0.00261  0.0005
O2   0.01794  0.01325  0.021  -0.00701  0.00911  -0.00264
O3   0.01307  0.02575  0.01201  0.00135  0.00426  -0.00729