Ferrosilite
      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 = .83 GPa
      _database_code_amcsd 0008005

      CELL PARAMETERS:   18.3988   9.0444   5.2245   90.000   90.000   90.000
      SPACE GROUP: Pbca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    869.389
      Density (g/cm3):      4.031
      MAX. ABS. INTENSITY / VOLUME**2:      9.326281344    
      RIR:      0.753
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.73         53.78        6.4495    2   1   0         4
                19.30         74.85        4.5997    4   0   0         2
                21.89         14.14        4.0596    2   1   1         8
                26.06         10.28        3.4192    0   2   1         4
                26.51          2.22        3.3617    1   2   1         8
                27.66         10.88        3.2254    4   1   1         8
                27.66         71.06        3.2247    4   2   0         4
                27.84         59.94        3.2050    2   2   1         8
                29.12          1.32        3.0665    6   0   0         2
                29.92         76.36        2.9864    3   2   1         8
                30.79        100.00        2.9041    6   1   0         4
                31.22          1.09        2.8649    2   3   0         4
                31.34         23.40        2.8547    5   1   1         8
                32.63         68.59        2.7441    4   2   1         8
                34.33          1.19        2.6123    0   0   2         2
                34.68         20.85        2.5863    1   0   2         4
                34.70         83.33        2.5853    1   3   1         8
                35.36          8.91        2.5383    6   1   1         8
                35.61          1.11        2.5215    4   3   0         4
                35.73         37.04        2.5129    2   0   2         4
                35.74         70.11        2.5120    2   3   1         8
                35.85         39.35        2.5048    5   2   1         8
                36.12          7.64        2.4866    1   1   2         8
                37.42         39.44        2.4033    3   0   2         4
                37.43          4.19        2.4025    3   3   1         8
                38.77          7.61        2.3227    3   1   2         8
                39.17          5.49        2.2998    8   0   0         2
                39.66          4.52        2.2727    7   1   1         8
                39.69          2.58        2.2708    4   3   1         8
                40.17          1.92        2.2451    1   2   2         8
                40.97          2.47        2.2031    4   1   2         8
                42.03          2.33        2.1498    6   3   0         4
                42.44         47.17        2.1301    5   0   2         4
                42.45         42.52        2.1295    5   3   1         8
                42.60          8.17        2.1222    3   2   2         8
                43.42         14.63        2.0839    7   2   1         8
                43.66         17.65        2.0734    5   1   2         8
                43.91          5.01        2.0620    1   4   1         8
                44.18          2.70        2.0501    8   1   1         8
                44.18          5.01        2.0500    8   2   0         4
                44.64          1.07        2.0298    4   2   2         8
                44.66          4.49        2.0292    4   4   0         4
                44.77          8.42        2.0242    2   4   1         8
                45.63         54.26        1.9881    6   3   1         8
                46.18          2.17        1.9656    3   4   1         8
                47.65         17.17        1.9083    8   2   1         8
                48.10          3.15        1.8915    4   4   1         8
                49.17         21.90        1.8528    7   0   2         4
                49.18          3.85        1.8525    7   3   1         8
                50.11          4.44        1.8203    6   2   2         8
                50.27          1.71        1.8151    7   1   2         8
                50.29          1.49        1.8142    4   3   2         8
                50.49          6.87        1.8075    5   4   1         8
                51.49         26.56        1.7749    2   5   0         4
                52.13          2.54        1.7546    9   2   1         8
                53.06          3.81        1.7259    8   3   1         8
                53.44          8.53        1.7145    7   2   2         8
                53.84          1.01        1.7027    1   1   3         8
                53.86          1.02        1.7023    1   4   2         8
                54.09          4.20        1.6956    8   1   2         8
                54.58          2.46        1.6813    2   1   3         8
                54.60          4.69        1.6808    2   4   2         8
                54.61          5.32        1.6806    2   5   1         8
                55.81          2.95        1.6472    3   1   3         8
                55.83          1.08        1.6466    3   5   1         8
                56.64         20.08        1.6252    0   2   3         4
                56.88         14.47        1.6189    1   2   3         8
                57.13          1.16        1.6124    8   4   0         4
                57.22         14.43        1.6099    9   0   2         4
                57.23         21.92        1.6097    9   3   1         8
                58.21          4.10        1.5850    9   1   2         8
                59.31         12.53        1.5580    6   5   0         4
                59.62          1.57        1.5508    5   1   3         8
                59.64          3.92        1.5502    5   5   1         8
                60.37         14.23        1.5332   12   0   0         2
                61.10          3.46        1.5167    9   2   2         8
                61.52         26.02        1.5074    0   6   0         2
                61.67         35.97        1.5040   10   3   1         8
                61.72         29.16        1.5029    1   3   3         8
                61.74          1.75        1.5025   11   2   1         8
                62.17          2.05        1.4930    6   5   1         8
                62.40         13.97        1.4881    2   3   3         8
                62.47          2.23        1.4866    5   2   3         8
                62.68          3.63        1.4823    1   5   2         8
                63.53          3.64        1.4644    3   3   3         8
                64.47         14.82        1.4453    3   5   2         8
                65.09          1.31        1.4331    7   4   2         8
                65.09          1.95        1.4330    7   5   1         8
                65.12          3.19        1.4324    4   6   0         4
                66.36         16.72        1.4086   11   0   2         4
                66.37         23.95        1.4084   11   3   1         8
                66.88          3.23        1.3990   12   2   1         8
                67.08          7.44        1.3954    5   3   3         8
                67.27          5.84        1.3918   11   1   2         8
                67.80          4.68        1.3823    7   2   3         8
                67.94          4.69        1.3797    0   4   3         4
                67.99          5.22        1.3788    5   5   2         8
                68.16          1.71        1.3758    1   4   3         8
                69.46         12.68        1.3532    6   3   3         8
                71.02          1.65        1.3272    8   2   3         8
                71.33          9.72        1.3222   12   3   1         8
                71.99          1.12        1.3117    9   1   3         8
                72.01          1.00        1.3113    9   5   1         8
                72.20          7.68        1.3084   12   1   2         8
                72.23          5.33        1.3080    7   3   3         8
                72.25          1.57        1.3077   13   2   1         8
                72.35          2.00        1.3061    0   0   4         2
                72.56          4.05        1.3028    1   0   4         4
                72.59          1.31        1.3023    1   6   2         8
                72.71          4.11        1.3005   14   1   0         4
                73.11          2.68        1.2943    7   5   2         8
                73.22          9.70        1.2927    2   6   2         8
                73.43          2.31        1.2895    1   1   4         8
                74.06          1.71        1.2801    2   1   4         8
                74.27         11.32        1.2770    3   6   2         8
                75.30          1.36        1.2620   14   1   1         8
                75.39          4.17        1.2607    8   6   0         4
                75.70         11.38        1.2565    4   0   4         4
                75.81          1.21        1.2548    0   2   4         4
                76.24          3.47        1.2488    8   5   2         8
                76.66          2.08        1.2431    2   5   3         8
                77.59          6.32        1.2305    5   6   2         8
                77.69          2.16        1.2291    3   5   3         8
                78.41          1.39        1.2196    5   1   4         8
                79.74          9.28        1.2026    9   5   2         8
                80.66          1.47        1.1912    6   1   4         8
                80.95          1.93        1.1877    5   2   4         8
                82.10          2.53        1.1739   14   3   1         8
                82.49          5.09        1.1693    7   6   2         8
                83.78          1.28        1.1545   15   2   1         8
                84.20          3.52        1.1499   16   0   0         2
                85.50          5.65        1.1357    8   0   4         4
                87.46          2.49        1.1152   12   2   3         8
                87.54          1.24        1.1145   16   2   0         4
                87.84          3.35        1.1114   11   5   2         8
                87.95          2.00        1.1103   15   0   2         4
                88.83          1.22        1.1015    8   2   4         8
                88.95          7.39        1.1004    9   6   2         8
                89.21          1.57        1.0979    4   8   0         4
                89.29          1.79        1.0971    2   8   1         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.