Enstatite
      Yang H, Ghose S
      Physics and Chemistry of Minerals 22 (1995) 300-310
      High temperature single crystal X-ray diffraction studies
      of the ortho-proto phase transition in enstatite, Mg2Si2O6 at 1360 K
      Sample: T = 1360 K
      _database_code_amcsd 0007922

      CELL PARAMETERS:   18.4560   8.9600   5.2700   90.000   90.000   90.000
      SPACE GROUP: Pbca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    871.478
      Density (g/cm3):      3.060
      MAX. ABS. INTENSITY / VOLUME**2:      6.669408395    
      RIR:      0.710
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.78          2.53        6.4283    2   1   0         4
                19.24          1.09        4.6140    4   0   0         2
                19.82         11.02        4.4800    0   2   0         2
                21.81          1.17        4.0755    2   1   1         8
                26.56         21.78        3.3564    1   2   1         8
                27.56         18.00        3.2370    4   1   1         8
                27.76         41.07        3.2142    4   2   0         4
                27.87        100.00        3.2013    2   2   1         8
                29.94         40.45        2.9847    3   2   1         8
                30.73         69.15        2.9093    6   1   0         4
                31.22         14.97        2.8647    5   1   1         8
                31.48          3.79        2.8415    2   3   0         4
                32.63         19.38        2.7441    4   2   1         8
                34.87         29.20        2.5730    1   3   1         8
                35.24          2.70        2.5470    6   1   1         8
                35.43         41.28        2.5337    2   0   2         4
                35.83         19.08        2.5061    5   2   1         8
                35.90          5.44        2.5011    2   3   1         8
                37.12          8.82        2.4222    3   0   2         4
                37.58          1.64        2.3936    3   3   1         8
                39.52          3.38        2.2803    7   1   1         8
                39.81          4.49        2.2641    4   3   1         8
                40.70          2.79        2.2170    4   1   2         8
                42.13         19.03        2.1446    5   0   2         4
                42.17          1.55        2.1428    6   3   0         4
                42.42          2.12        2.1307    3   2   2         8
                42.55         14.23        2.1247    5   3   1         8
                43.37          4.20        2.0866    7   2   1         8
                43.38          7.96        2.0857    5   1   2         8
                44.02          3.60        2.0569    8   1   1         8
                44.21          5.48        2.0488    1   4   1         8
                44.99          2.68        2.0151    4   4   0         4
                45.06         11.55        2.0119    2   4   1         8
                45.71         11.96        1.9850    6   3   1         8
                46.46          1.42        1.9547    3   4   1         8
                47.57          2.78        1.9114    8   2   1         8
                48.36          1.12        1.8822    4   4   1         8
                48.38          1.91        1.8813    3   3   2         8
                48.87          4.14        1.8638    7   0   2         4
                49.91          3.62        1.8271    6   2   2         8
                50.23          1.04        1.8164    4   3   2         8
                50.49          5.87        1.8077   10   1   0         4
                50.72          4.35        1.7998    5   4   1         8
                51.98          7.07        1.7591    2   5   0         4
                53.09          6.33        1.7252    8   3   1         8
                53.23          3.47        1.7208    7   2   2         8
                53.80          3.93        1.7041    8   1   2         8
                53.95          1.21        1.6994    1   4   2         8
                54.12          1.61        1.6945    2   1   3         8
                54.69          4.14        1.6782    2   4   2         8
                55.03          1.04        1.6686    2   5   1         8
                55.91          2.30        1.6446    3   4   2         8
                56.25         16.79        1.6354    0   2   3         4
                56.49          3.51        1.6291    1   2   3         8
                56.90          3.19        1.6183    9   0   2         4
                57.23          7.68        1.6097    9   3   1         8
                57.33          2.18        1.6071    8   4   0         4
                57.90          1.79        1.5926    9   1   2         8
                57.91          1.35        1.5924    4   5   1         8
                59.72          2.19        1.5484    6   5   0         4
                60.01          1.28        1.5416    5   5   1         8
                60.17          3.06        1.5380   12   0   0         2
                60.86          2.09        1.5221    9   2   2         8
                61.44          7.45        1.5091    1   3   3         8
                61.64          9.26        1.5047   10   3   1         8
                61.68          1.39        1.5038    6   1   3         8
                62.12          5.13        1.4942    2   3   3         8
                62.16         11.18        1.4933    0   6   0         2
                64.71          4.09        1.4406    3   5   2         8
                66.01          4.66        1.4153   11   0   2         4
                66.31         11.72        1.4095   11   3   1         8
                66.94          4.18        1.3979   11   1   2         8
                67.79          4.17        1.3823    0   4   3         4
                69.15          4.54        1.3585    6   3   3         8
                71.21          1.11        1.3242    4   4   3         8
                71.25          7.16        1.3235   12   3   1         8
                71.84          1.85        1.3142    1   0   4         4
                71.85          5.37        1.3139   12   1   2         8
                72.47          1.70        1.3042   14   1   0         4
                72.73          2.11        1.3002    1   1   4         8
                73.51          1.36        1.2883    3   0   4         4
                73.63          6.30        1.2865    2   6   2         8
                73.69          1.42        1.2857   10   5   0         4
                74.67          2.92        1.2712    3   6   2         8
                74.97          1.67        1.2669    4   0   4         4
                76.39          2.24        1.2468    8   5   2         8
                76.66          1.01        1.2430    2   5   3         8
                77.96          1.20        1.2255    5   6   2         8
                79.86          2.53        1.2011    9   5   2         8
                82.38          1.59        1.1706   10   3   3         8
                89.25          1.54        1.0975    9   6   2         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.