Enstatite
      Hugh-Jones D A, Chopelas A, Angel R J
      Physics and Chemistry of Minerals 24 (1997) 301-310
      Tetrahedral compression in (Mg,Fe)SiO3 orthopyroxenes
      Sample: P = 1.90 GPa, natural orthopyroxene
      _database_code_amcsd 0008020

      CELL PARAMETERS:   18.1600   8.7503   5.1606   90.000   90.000   90.000
      SPACE GROUP: Pbca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    820.047
      Density (g/cm3):      3.377
      MAX. ABS. INTENSITY / VOLUME**2:      5.294626310    
      RIR:      0.511
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.06          4.14        6.3007    2   1   0         4
                19.55          2.22        4.5400    4   0   0         2
                20.30          4.29        4.3752    0   2   0         2
                22.06          1.43        4.0299    4   1   0         4
                22.27         15.11        3.9924    2   1   1         8
                27.17         36.02        3.2823    1   2   1         8
                28.09         16.94        3.1762    4   1   1         8
                28.33         78.02        3.1504    4   2   0         4
                28.50         97.70        3.1324    2   2   1         8
                29.51          3.83        3.0267    6   0   0         2
                30.59         59.74        2.9225    3   2   1         8
                31.27        100.00        2.8604    6   1   0         4
                31.82         36.48        2.8125    5   1   1         8
                32.23          1.57        2.7770    2   3   0         4
                33.32         39.47        2.6889    4   2   1         8
                34.77          1.22        2.5803    0   0   2         2
                35.13          2.45        2.5546    1   0   2         4
                35.70         64.45        2.5148    1   3   1         8
                35.90          9.04        2.5018    6   1   1         8
                36.19         71.91        2.4820    2   0   2         4
                36.57         33.07        2.4574    5   2   1         8
                36.62          2.71        2.4540    4   3   0         4
                36.75         14.79        2.4454    2   3   1         8
                37.67          1.54        2.3878    2   1   2         8
                37.90         10.20        2.3737    3   0   2         4
                38.44          6.32        2.3416    3   3   1         8
                39.33          2.97        2.2909    3   1   2         8
                40.20          2.36        2.2433    4   0   2         4
                40.22          1.52        2.2419    6   2   1         8
                40.25          9.89        2.2406    7   1   1         8
                40.71          4.36        2.2162    4   3   1         8
                41.56          3.57        2.1730    4   1   2         8
                43.00         39.37        2.1035    5   0   2         4
                43.07          3.72        2.1002    6   3   0         4
                43.37          8.58        2.0864    3   2   2         8
                43.49         32.82        2.0811    5   3   1         8
                44.22          6.90        2.0482    7   2   1         8
                44.29         13.97        2.0452    5   1   2         8
                44.83          5.30        2.0216    8   1   1         8
                44.99          2.50        2.0149    8   2   0         4
                45.30         13.55        2.0018    1   4   1         8
                45.44          2.66        1.9962    4   2   2         8
                46.06          9.94        1.9707    4   4   0         4
                46.17         14.81        1.9663    2   4   1         8
                46.69         36.73        1.9453    6   3   1         8
                47.45          2.08        1.9159    6   1   2         8
                47.58          1.50        1.9111    3   4   1         8
                48.50          7.15        1.8769    8   2   1         8
                49.51          1.37        1.8411    4   4   1         8
                49.84          7.04        1.8295    7   0   2         4
                50.98          8.04        1.7914    6   2   2         8
                51.38          1.05        1.7782    4   3   2         8
                51.39          9.93        1.7781   10   1   0         4
                51.91          6.97        1.7614    5   4   1         8
                53.31         14.18        1.7184    2   5   0         4
                53.73          1.34        1.7061    5   3   2         8
                54.20          9.90        1.6923    8   3   1         8
                54.35          9.95        1.6879    7   2   2         8
                54.73          1.64        1.6773   10   2   0         4
                54.74          1.32        1.6768    6   4   1         8
                54.88          9.51        1.6729    8   1   2         8
                55.03          1.04        1.6686    0   4   2         4
                55.29          2.71        1.6616    1   4   2         8
                55.36          3.23        1.6595    2   1   3         8
                56.04          6.54        1.6411    2   4   2         8
                56.44          4.68        1.6304    2   5   1         8
                56.61          6.93        1.6259    3   1   3         8
                57.27          1.03        1.6086    3   4   2         8
                57.57         15.92        1.6009    0   2   3         4
                57.82         17.90        1.5947    1   2   3         8
                58.03         10.29        1.5895    9   0   2         4
                58.08          1.85        1.5881    8   2   2         8
                58.42         16.17        1.5797    9   3   1         8
                58.60          2.09        1.5752    8   4   0         4
                59.07          1.54        1.5639    9   1   2         8
                59.36          1.50        1.5569    4   5   1         8
                59.75          1.07        1.5476   11   1   1         8
                60.48          1.66        1.5307    5   1   3         8
                61.17         11.23        1.5150    6   5   0         4
                61.25          5.48        1.5133   12   0   0         2
                61.41          1.04        1.5098    4   2   3         8
                61.50          3.42        1.5078    5   5   1         8
                62.13          3.48        1.4939    9   2   2         8
                62.80          1.91        1.4797   11   2   1         8
                62.92         37.47        1.4771   10   3   1         8
                62.94         44.05        1.4768    1   3   3         8
                63.06          2.00        1.4742    6   1   3         8
                63.51          1.62        1.4649    5   2   3         8
                63.63          4.29        1.4624    2   3   3         8
                63.68          2.54        1.4613    6   4   2         8
                63.82         30.69        1.4584    0   6   0         2
                66.36         12.53        1.4086    3   5   2         8
                66.49          1.82        1.4063   10   2   2         8
                66.64          2.76        1.4034    7   4   2         8
                66.86          2.01        1.3992    1   6   1         8
                66.97          2.41        1.3973   10   4   0         4
                67.00          1.62        1.3967    7   5   1         8
                67.33         21.99        1.3906   11   0   2         4
                67.69         25.01        1.3841   11   3   1         8
                68.02          2.24        1.3782   12   2   1         8
                68.29          5.65        1.3734   11   1   2         8
                68.38          4.42        1.3719    5   3   3         8
                68.92          6.25        1.3624    7   2   3         8
                69.52          4.59        1.3522    0   4   3         4
                69.74          2.98        1.3485    1   4   3         8
                69.92          2.24        1.3453    5   5   2         8
                70.80          7.30        1.3308    6   3   3         8
                71.49          2.86        1.3197    3   4   3         8
                72.21          1.13        1.3083    8   2   3         8
                72.39          1.09        1.3054   12   0   2         4
                72.74         16.62        1.3000   12   3   1         8
                73.01          1.71        1.2959    4   4   3         8
                73.09          2.45        1.2947    9   1   3         8
                73.33         12.10        1.2911   12   1   2         8
                73.49          2.99        1.2886   13   2   1         8
                73.60          7.23        1.2869    1   0   4         4
                73.62          2.94        1.2866    7   3   3         8
                73.86          3.33        1.2831   14   1   0         4
                74.53          4.32        1.2732    1   1   4         8
                75.32          1.09        1.2618    3   0   4         4
                75.44          2.01        1.2601   10   5   0         4
                75.63         15.50        1.2574    2   6   2         8
                76.24          1.07        1.2489    3   1   4         8
                76.50          2.64        1.2452   14   1   1         8
                76.69          5.51        1.2426    3   6   2         8
                76.81          6.08        1.2410    4   0   4         4
                77.85          1.39        1.2270    8   6   0         4
                78.31          7.07        1.2210    8   5   2         8
                78.71          1.66        1.2157    2   5   3         8
                79.53          1.15        1.2052    4   7   0         4
                79.62          3.12        1.2042    5   1   4         8
                79.76          3.92        1.2023    3   5   3         8
                80.07          5.41        1.1985    5   6   2         8
                81.87          6.63        1.1766    9   5   2         8
                82.32          2.89        1.1713    5   2   4         8
                84.00          1.58        1.1522    5   7   1         8
                84.37          1.61        1.1481   10   3   3         8
                84.62          1.72        1.1453    7   1   4         8
                85.07          1.61        1.1404    7   6   2         8
                85.57          2.84        1.1350   16   0   0         2
                86.28          1.07        1.1275    6   7   1         8
                86.68          1.23        1.1233    9   4   3         8
                86.83          2.10        1.1216    8   0   4         4
                89.02          1.47        1.0997   16   1   1         8
                89.13          1.12        1.0986   16   2   0         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.