Spodumene
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R060039
      Redhammer G J, Roth G
      Zeitschrift fur Kristallographie 219 (2004) 278-294
      Structural variation and crystal chemistry of LiMe3+Si2O6 clinopyroxenes
      Me3+ = Al, Ga, Cr, V, Fe, Sc, and In
      Locality: synthetic
      Sample: LiAl

      CELL PARAMETERS:   9.504000   8.371000   5.204000   90.00000   110.3300   90.00000
      SPACE GROUP: C2/c
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                14.61         14.66        6.1069    1   1   0
                20.06         11.11        4.4467    2   0   0
                20.46         22.69        4.3610   -1   1   1
                21.25         36.51        4.2003    0   2   0
                25.94         23.46        3.4466    1   1   1
                28.06         26.81        3.1903    0   2   1
                29.34          2.49        3.0535    2   2   0
                30.70        100.00        2.9208   -2   2   1
                31.35         10.66        2.8616   -3   1   1
                32.10         56.03        2.7955    3   1   0
                33.64          6.88        2.6709    1   3   0
                35.26          8.60        2.5512   -2   0   2
                36.69          2.08        2.4548   -1   3   1
                36.73         36.49        2.4524    0   0   2
                38.31         12.85        2.3542    2   2   1
                40.65          2.79        2.2234    4   0   0
                41.49          1.86        2.1805   -2   2   2
                42.16          5.97        2.1470    3   1   1
                42.77          1.24        2.1178    0   2   2
                42.94         17.13        2.1096    1   1   2
                44.01         10.41        2.0607   -3   3   1
                44.19          1.18        2.0527   -4   2   1
                44.66          2.78        2.0322   -4   0   2
                44.58          2.46        2.0356    3   3   0
                47.14          9.65        1.9306    0   4   1
                48.88         19.63        1.8658   -2   4   1
                49.38          7.05        1.8480   -5   1   1
                49.92          4.10        1.8293   -4   2   2
                51.15          2.13        1.7880   -3   3   2
                52.66          4.96        1.7401    5   1   0
                53.22          1.47        1.7233    2   2   2
                54.63          1.23        1.6819   -1   1   3
                55.16          1.96        1.6670   -3   1   3
                55.74          3.21        1.6509    1   5   0
                56.84          2.88        1.6214   -2   4   2
                57.34         16.03        1.6084   -2   2   3
                57.54          8.59        1.6032    3   1   2
                57.86          5.86        1.5952    0   4   2
                58.92         22.33        1.5691   -5   3   1
                60.93          1.78        1.5218   -6   0   2
                60.71          7.16        1.5267    4   4   0
                62.40          1.68        1.4893    5   1   1
                62.21          3.23        1.4935    1   1   3
                62.73          1.79        1.4822    6   0   0
                63.66          2.44        1.4628   -5   1   3
                63.78          1.78        1.4604   -4   4   2
                63.72          3.55        1.4617    3   5   0
                63.63          7.65        1.4635   -1   3   3
                64.11          1.08        1.4537   -3   3   3
                65.26          1.27        1.4308   -6   2   2
                65.74          2.11        1.4214    4   0   2
                66.87          6.56        1.4001    0   6   0
                69.03          7.04        1.3614   -3   5   2
                69.91          3.97        1.3464    4   2   2
                69.91          1.23        1.3463    0   6   1
                70.27          6.88        1.3404   -2   4   3
                70.82         14.48        1.3313    5   3   1
                71.86         11.47        1.3145   -7   1   2
                71.68          3.12        1.3174    2   2   3
                72.00          2.61        1.3123   -5   3   3
                72.61          3.17        1.3027   -2   0   4
                73.62          3.32        1.2873   -3   1   4
                74.41          3.63        1.2756   -4   0   4
                75.75          1.90        1.2562    7   1   0
                76.77          1.47        1.2420    6   2   1
                77.21          2.55        1.2360    5   1   2
                77.86          3.77        1.2274   -2   6   2
                78.31          1.46        1.2214    5   5   0
                77.95          2.08        1.2262    0   0   4
                78.37          1.09        1.2206   -4   2   4
                78.84          3.07        1.2145   -7   3   1
                78.73          9.61        1.2159    0   6   2
                80.85          1.11        1.1893    1   7   0
                82.37          6.54        1.1711    3   5   2
                82.62          1.46        1.1682   -1   7   1
                83.18          2.30        1.1617   -6   0   4
                83.60          1.11        1.1570    7   3   0
                84.32          1.20        1.1489    3   3   3
                86.48          1.79        1.1256   -7   3   3
                86.48          1.79        1.1256   -7   3   3
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.