Diopside
Diffraction data computed using the structure from the paper listed below,
along with the cell parameters refined from the powder pattern for R050496
      Cameron M, Sueno S, Prewitt C T, Papike J J
      American Mineralogist 58 (1973) 594-618
      High-temperature crystal chemistry of acmite, diopside, hedenbergite, jadeite,
      spodumene, and ureyite
      T = 24 C
      pyroxene

      CELL PARAMETERS:   9.773833   8.931903   5.268327   90.00000   105.6934   90.00000
      SPACE GROUP: C2/c
      X-RAY WAVELENGTH:     1.541838
               2-THETA      INTENSITY    D-SPACING   H   K   L
                19.91          3.12        4.4660    0   2   0
                24.24          2.75        3.6751    1   1   1
                26.61         10.48        3.3518    0   2   1
                27.56         25.12        3.2390    2   2   0
                29.85        100.00        2.9945   -2   2   1
                30.22         27.05        2.9593    3   1   0
                30.87         36.34        2.8982   -3   1   1
                31.53          1.22        2.8386    1   3   0
                34.95         24.26        2.5680   -1   3   1
                35.39          2.18        2.5373   -2   0   2
                35.41         41.64        2.5360    0   0   2
                35.57         41.75        2.5249    2   2   1
                37.56          1.30        2.3951    1   3   1
                38.96         17.63        2.3121    3   1   1
                40.55          9.64        2.2250    1   1   2
                40.91          1.28        2.2061   -2   2   2
                40.93          9.54        2.2052    0   2   2
                41.84         10.08        2.1594    3   3   0
                42.33         18.52        2.1353   -3   3   1
                42.84          8.71        2.1111   -4   2   1
                43.49          1.07        2.0813    4   2   0
                44.33         19.26        2.0437    0   4   1
                44.92         11.96        2.0182   -4   0   2
                44.96          7.49        2.0161    2   0   2
                46.01          7.85        1.9728   -1   3   2
                48.82          2.21        1.8655    3   3   1
                49.50          6.75        1.8415    5   1   0
                49.61          3.10        1.8376    2   2   2
                50.15          3.64        1.8189    1   3   2
                52.11         13.73        1.7550    1   5   0
                53.17          1.91        1.7225   -5   1   2
                54.45          1.42        1.6850   -1   5   1
                54.77          4.84        1.6759    0   4   2
                55.26          6.51        1.6620   -3   1   3
                56.51         17.54        1.6283   -2   2   3
                56.53         14.41        1.6279   -5   3   1
                56.84          5.23        1.6195    4   4   0
                57.97          2.10        1.5908    5   3   0
                58.88          3.83        1.5682    6   0   0
                59.54          4.77        1.5523    3   5   0
                60.41          5.23        1.5320   -6   0   2
                60.48          6.70        1.5305    4   0   2
                60.53          2.50        1.5293   -6   2   1
                61.29          1.41        1.5122   -5   3   2
                61.49         13.58        1.5076   -1   3   3
                62.00          1.88        1.4964    2   4   2
                62.36          4.65        1.4887    0   6   0
                63.45          1.65        1.4657    4   4   1
                64.26          2.66        1.4491   -6   2   2
                64.33          1.48        1.4479    4   2   2
                65.35         18.88        1.4275    5   3   1
                65.31          2.41        1.4284    0   6   1
                66.23          9.63        1.4107   -3   5   2
                66.26          4.37        1.4102    1   5   2
                67.02          4.63        1.3959    2   2   3
                67.93          1.28        1.3795   -7   1   1
                68.08          1.21        1.3768   -2   4   3
                69.75          1.65        1.3479    0   4   3
                70.64          6.94        1.3330   -7   1   2
                70.71          1.14        1.3319    5   1   2
                70.70          4.33        1.3320    6   2   1
                70.87          1.19        1.3292    7   1   0
                71.52          3.41        1.3188   -5   3   3
                73.31          3.90        1.2909   -3   1   4
                73.34          2.22        1.2905   -1   1   4
                73.77          3.71        1.2840   -2   6   2
                73.78          6.31        1.2838    0   6   2
                74.81          1.83        1.2687   -4   0   4
                74.86          3.60        1.2680    0   0   4
                75.13          1.57        1.2641   -7   3   1
                75.11          1.04        1.2644   -4   6   1
                75.24          1.06        1.2624    4   4   2
                76.02          7.86        1.2514    3   5   2
                77.04          1.36        1.2375   -1   7   1
                78.61          2.24        1.2165    1   7   1
                78.76          1.24        1.2147   -7   1   3
                81.87          1.93        1.1762    8   0   0
                83.61          1.12        1.1560    6   2   2
                83.93          1.05        1.1524   -6   4   3
                84.17          3.51        1.1497   -6   0   4
                87.68          1.86        1.1125    2   2   4
                87.68          1.86        1.1125    2   2   4
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.