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 = 300 C
 pyroxene
;
_database_code_amcsd 356
_chemical_formula_sum 'Si2 Al Li O6'
_cell_length_a 9.468
_cell_length_b 8.412
_cell_length_c 5.224
_cell_angle_alpha 90.0
_cell_angle_beta 110.05
_cell_angle_gamma 90.0
_cell_volume 390.848
_exptl_crystal_density_diffrn  3.162
_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  0.0932  0.2547
Al1   0.0  0.9059  0.25
Li2   0.0  0.2758  0.25
O1   0.1101  0.0819  0.1397
O2   0.3649  0.2662  0.3012
O3   0.3565  0.9886  0.0546
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   0.00628  0.00813  0.00549  -0.00103  0.00195  -0.00025
Al1   0.00714  0.00774  0.00657  0.0  0.00224  0.0
Li2   0.02905  0.02756  0.02557  0.0  0.00769  0.0
O1   0.00649  0.01094  0.00739  -0.00049  0.00166  0.00061
O2   0.0144  0.01023  0.01655  -0.00501  0.00684  -0.0022
O3   0.00981  0.02025  0.00964  0.00043  0.00284  -0.00562