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 = 3.00 GPa, natural orthopyroxene
      _database_code_amcsd 0008021

      CELL PARAMETERS:   18.1150   8.7184   5.1472   90.000   90.000   90.000
      SPACE GROUP: Pbca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    812.917
      Density (g/cm3):      3.407
      MAX. ABS. INTENSITY / VOLUME**2:      5.784219362    
      RIR:      0.553
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.10          5.26        6.2813    2   1   0         4
                19.60          1.84        4.5287    4   0   0         2
                20.37          3.97        4.3592    0   2   0         2
                20.63          1.14        4.3054    1   1   1         8
                22.12          1.05        4.0189    4   1   0         4
                22.33         13.46        3.9812    2   1   1         8
                27.26         33.18        3.2718    1   2   1         8
                28.17         13.60        3.1677    4   1   1         8
                28.42         70.10        3.1406    4   2   0         4
                28.59         85.46        3.1226    2   2   1         8
                30.69         52.14        2.9136    3   2   1         8
                31.35        100.00        2.8529    6   1   0         4
                31.90         37.31        2.8051    5   1   1         8
                32.35          1.33        2.7672    2   3   0         4
                33.42         37.14        2.6810    4   2   1         8
                34.86          1.40        2.5736    0   0   2         2
                35.22          3.05        2.5480    1   0   2         4
                35.83         56.60        2.5063    1   3   1         8
                35.99         11.07        2.4953    6   1   1         8
                36.19          1.55        2.4820    6   2   0         4
                36.29         68.12        2.4756    2   0   2         4
                36.68         32.10        2.4503    5   2   1         8
                36.75          2.09        2.4459    4   3   0         4
                36.88         15.28        2.4373    2   3   1         8
                37.78          1.16        2.3815    2   1   2         8
                38.01          8.70        2.3675    3   0   2         4
                38.57          6.50        2.3340    3   3   1         8
                39.44          1.54        2.2848    3   1   2         8
                40.31          2.43        2.2375    4   0   2         4
                40.36          8.50        2.2348    7   1   1         8
                40.85          5.76        2.2091    4   3   1         8
                41.67          2.94        2.1673    4   1   2         8
                43.11         36.68        2.0981    5   0   2         4
                43.21          3.41        2.0938    6   3   0         4
                43.50          6.47        2.0805    3   2   2         8
                43.63         22.44        2.0746    5   3   1         8
                44.35          6.87        2.0426    7   2   1         8
                44.41         10.26        2.0399    5   1   2         8
                44.95          5.37        2.0165    8   1   1         8
                45.12          2.03        2.0094    8   2   0         4
                45.47         13.09        1.9949    1   4   1         8
                45.57          1.99        1.9906    4   2   2         8
                46.22          8.92        1.9640    4   4   0         4
                46.33         11.98        1.9595    2   4   1         8
                46.84         35.60        1.9394    6   3   1         8
                47.58          1.42        1.9110    6   1   2         8
                47.75          1.33        1.9046    3   4   1         8
                48.64          7.13        1.8719    8   2   1         8
                49.67          1.24        1.8355    3   3   2         8
                49.98          6.66        1.8248    7   0   2         4
                51.13          6.94        1.7865    6   2   2         8
                51.53         11.43        1.7736   10   1   0         4
                51.55          1.06        1.7729    4   3   2         8
                52.09          5.79        1.7557    5   4   1         8
                53.52         13.03        1.7122    2   5   0         4
                53.90          1.39        1.7011    5   3   2         8
                54.37          8.81        1.6875    8   3   1         8
                54.51          8.38        1.6833    7   2   2         8
                55.03         10.07        1.6686    8   1   2         8
                55.48          2.87        1.6563    1   4   2         8
                55.52          2.16        1.6551    2   1   3         8
                56.23          6.01        1.6359    2   4   2         8
                56.65          3.44        1.6247    2   5   1         8
                56.77          6.99        1.6216    3   1   3         8
                57.47          1.08        1.6035    3   4   2         8
                57.75         14.72        1.5965    0   2   3         4
                57.99         16.24        1.5904    1   2   3         8
                58.19          8.54        1.5855    9   0   2         4
                58.25          1.97        1.5838    8   2   2         8
                58.60         15.61        1.5753    9   3   1         8
                58.80          2.34        1.5703    8   4   0         4
                59.24          1.43        1.5599    9   1   2         8
                59.59          1.28        1.5515    4   5   1         8
                60.66          1.16        1.5267    5   1   3         8
                61.40         11.07        1.5099    6   5   0         4
                61.42          5.62        1.5096   12   0   0         2
                61.59          1.06        1.5057    4   2   3         8
                61.73          3.13        1.5027    5   5   1         8
                62.32          3.65        1.4900    9   2   2         8
                63.12         32.26        1.4730   10   3   1         8
                63.14         41.10        1.4726    1   3   3         8
                63.24          1.91        1.4703    6   1   3         8
                63.70          1.93        1.4610    5   2   3         8
                63.83          3.68        1.4582    2   3   3         8
                63.90          2.40        1.4568    6   4   2         8
                64.08         27.24        1.4531    0   6   0         2
                66.61         11.81        1.4040    3   5   2         8
                66.69          1.83        1.4026   10   2   2         8
                66.87          2.41        1.3992    7   4   2         8
                67.14          1.69        1.3943    1   6   1         8
                67.20          2.04        1.3932   10   4   0         4
                67.25          1.09        1.3922    7   5   1         8
                67.53         16.84        1.3871   11   0   2         4
                67.91         26.33        1.3803   11   3   1         8
                68.22          2.31        1.3747   12   2   1         8
                68.49          6.88        1.3699   11   1   2         8
                68.60          3.35        1.3681    5   3   3         8
                69.13          6.21        1.3588    7   2   3         8
                69.76          4.36        1.3482    0   4   3         4
                69.98          2.64        1.3444    1   4   3         8
                70.18          1.71        1.3410    5   5   2         8
                71.03          6.33        1.3271    6   3   3         8
                71.73          2.56        1.3158    3   4   3         8
                72.61          1.17        1.3021   12   0   2         4
                72.97         12.75        1.2964   12   3   1         8
                73.26          1.51        1.2921    4   4   3         8
                73.31          1.91        1.2913    9   1   3         8
                73.54         11.07        1.2878   12   1   2         8
                73.71          2.86        1.2853   13   2   1         8
                73.83          6.80        1.2836    1   0   4         4
                73.86          3.52        1.2831    7   3   3         8
                74.07          2.57        1.2799   14   1   0         4
                74.76          3.72        1.2699    1   1   4         8
                75.71          2.07        1.2563   10   5   0         4
                75.93         14.62        1.2531    2   6   2         8
                76.47          1.10        1.2456    3   1   4         8
                76.73          1.90        1.2421   14   1   1         8
                77.00          4.44        1.2384    3   6   2         8
                77.04          4.97        1.2378    4   0   4         4
                77.39          1.04        1.2332   10   1   3         8
                78.16          1.16        1.2229    8   6   0         4
                78.59          6.67        1.2172    8   5   2         8
                79.00          1.13        1.2120    2   5   3         8
                79.86          2.85        1.2010    5   1   4         8
                79.88          1.29        1.2009    4   7   0         4
                80.06          3.26        1.1986    3   5   3         8
                80.38          4.65        1.1946    5   6   2         8
                82.17          5.37        1.1731    9   5   2         8
                82.58          2.58        1.1682    5   2   4         8
                84.36          1.54        1.1482    5   7   1         8
                84.65          2.36        1.1449   10   3   3         8
                84.89          1.60        1.1423    7   1   4         8
                85.41          1.62        1.1367    7   6   2         8
                85.83          2.17        1.1322   16   0   0         2
                86.98          1.28        1.1201    9   4   3         8
                87.11          1.92        1.1188    8   0   4         4
                89.30          1.16        1.0970   16   1   1         8
                89.42          1.54        1.0958   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.