Protoenstatite
      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 = 1400 K
      _database_code_amcsd 0007924

      CELL PARAMETERS:    9.3150   8.8990   5.3650   90.000   90.000   90.000
      SPACE GROUP: Pbcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    444.727
      Density (g/cm3):      2.998
      MAX. ABS. INTENSITY / VOLUME**2:      11.44643742    
      RIR:      1.243
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.76          2.41        6.4346    1   1   0         4
                19.06          1.06        4.6575    2   0   0         2
                19.95          6.19        4.4495    0   2   0         2
                21.57          1.10        4.1206    1   1   1         8
                27.26         20.14        3.2709    2   1   1         8
                27.73         25.78        3.2173    2   2   0         4
                27.75        100.00        3.2145    1   2   1         8
                30.49         39.57        2.9317    3   1   0         4
                31.66          3.62        2.8265    1   3   0         4
                32.45         27.38        2.7592    2   2   1         8
                34.80         21.97        2.5777    1   0   2         4
                34.87          4.70        2.5726    3   1   1         8
                35.91          8.87        2.5007    1   3   1         8
                38.74         19.21        2.3245    2   0   2         4
                39.75          4.90        2.2675    2   3   1         8
                40.09          2.88        2.2491    2   1   2         8
                42.13          1.42        2.1449    3   3   0         4
                43.57          3.74        2.0772    4   1   1         8
                45.17          1.40        2.0075    2   4   0         4
                45.18         12.90        2.0068    1   4   1         8
                45.55         12.37        1.9916    3   3   1         8
                45.85          2.99        1.9791    3   1   2         8
                47.20          2.63        1.9258    4   2   1         8
                48.41          1.69        1.8802    2   4   1         8
                49.35          2.30        1.8468    3   2   2         8
                50.02          4.10        1.8235    5   1   0         4
                52.00          3.41        1.7585    4   0   2         4
                52.33          4.09        1.7482    1   5   0         4
                52.81          7.10        1.7335    4   3   1         8
                53.09          1.96        1.7252    4   1   2         8
                53.16          1.46        1.7230    1   1   3         8
                53.51          1.68        1.7124    0   4   2         4
                54.48          3.70        1.6842    1   4   2         8
                55.37         12.85        1.6593    0   2   3         4
                56.25          4.83        1.6354    4   2   2         8
                57.27          1.48        1.6086    4   4   0         4
                58.08          1.64        1.5880    2   5   1         8
                59.55          1.66        1.5525    6   0   0         2
                61.24         11.43        1.5136    5   3   1         8
                61.34          5.74        1.5112    1   3   3         8
                61.49          4.62        1.5080    5   1   2         8
                62.63          5.30        1.4832    0   6   0         2
                63.52          1.85        1.4646    1   5   2         8
                67.16          2.75        1.3938    0   4   3         4
                68.29          3.40        1.3735    3   3   3         8
                70.02          1.56        1.3437    6   0   2         4
                70.70          7.15        1.3324    6   3   1         8
                70.93          3.48        1.3286    6   1   2         8
                71.00          4.39        1.3276    1   0   4         4
                71.71          1.22        1.3161    7   1   0         4
                73.47          1.17        1.2889    2   0   4         4
                73.69          4.35        1.2856    1   6   2         8
                76.09          1.66        1.2509    4   5   2         8
                76.13          3.10        1.2503    2   6   2         8
                81.33          1.22        1.1831    5   3   3         8
                83.27          2.47        1.1603    5   5   2         8
                83.97          1.47        1.1525    4   1   4         8
                85.68          1.04        1.1338    4   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.