Ferrosilite
      Smyth J R
      American Mineralogist 58 (1973) 636-648
      An orthopyroxene structure up to 850 C
      T = 280 C
      _database_code_amcsd 0000364

      CELL PARAMETERS:   18.3710   9.0000   5.2420   90.000   90.000   90.000
      SPACE GROUP: Pbca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    866.707
      Density (g/cm3):      3.728
      MAX. ABS. INTENSITY / VOLUME**2:      7.045731947    
      RIR:      0.615
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.78         13.35        6.4285    2   1   0         4
                19.33         41.50        4.5928    4   0   0         2
                20.19          5.53        4.3980    1   1   1         8
                21.88         31.50        4.0626    2   1   1         8
                24.44          3.53        3.6417    3   1   1         8
                26.10          2.54        3.4144    0   2   1         4
                26.55         10.55        3.3570    1   2   1         8
                27.66         15.34        3.2250    4   1   1         8
                27.75        100.00        3.2143    4   2   0         4
                27.88         82.40        3.2005    2   2   1         8
                29.96         66.87        2.9822    3   2   1         8
                30.85         89.91        2.8987    6   1   0         4
                31.35         41.17        2.8535    5   1   1         8
                32.68         46.68        2.7402    4   2   1         8
                34.57         10.93        2.5947    1   0   2         4
                34.80         82.09        2.5780    1   3   1         8
                35.39         17.48        2.5367    6   1   1         8
                35.62         43.35        2.5204    2   0   2         4
                35.85         48.32        2.5051    2   3   1         8
                35.90         35.02        2.5012    5   2   1         8
                36.02          1.90        2.4932    1   1   2         8
                37.32         36.09        2.4096    3   0   2         4
                37.54          1.90        2.3961    3   3   1         8
                38.68          2.61        2.3276    3   1   2         8
                39.23          2.04        2.2964    8   0   0         2
                39.69          9.91        2.2708    7   1   1         8
                39.80          4.92        2.2651    4   3   1         8
                40.07          1.78        2.2500    0   4   0         2
                40.11          4.49        2.2478    1   2   2         8
                40.89          3.28        2.2069    4   1   2         8
                42.17          3.34        2.1428    6   3   0         4
                42.36         43.45        2.1337    5   0   2         4
                42.56         38.47        2.1244    5   3   1         8
                42.56         12.75        2.1242    3   2   2         8
                43.49         11.76        2.0808    7   2   1         8
                43.59         12.23        2.0762    5   1   2         8
                44.08          8.75        2.0546    1   4   1         8
                44.22          4.28        2.0482    8   1   1         8
                44.28          7.49        2.0454    8   2   0         4
                44.86          9.23        2.0206    4   4   0         4
                44.94         11.05        2.0171    2   4   1         8
                45.74         41.27        1.9835    6   3   1         8
                46.35          1.30        1.9589    3   4   1         8
                47.14          1.91        1.9280    5   2   2         8
                47.73         10.01        1.9055    8   2   1         8
                48.27          1.30        1.8853    4   4   1         8
                49.13         18.42        1.8545    7   0   2         4
                49.30          2.60        1.8484    7   3   1         8
                50.10          4.54        1.8208    6   2   2         8
                50.32          1.98        1.8134    4   3   2         8
                50.66          5.43        1.8019    5   4   1         8
                50.72          3.85        1.8000   10   1   0         4
                51.75         20.18        1.7664    2   5   0         4
                52.21          1.36        1.7520    9   2   1         8
                52.64          1.39        1.7388    5   3   2         8
                53.18          5.26        1.7223    8   3   1         8
                53.44         12.07        1.7146    7   2   2         8
                53.67          1.30        1.7079    1   1   3         8
                53.85          1.64        1.7024   10   1   1         8
                53.94          3.30        1.6999    1   4   2         8
                54.06          5.04        1.6963    8   1   2         8
                54.41          6.43        1.6862    2   1   3         8
                54.68          4.63        1.6785    2   4   2         8
                54.84          5.19        1.6739    2   5   1         8
                55.65          3.48        1.6517    3   1   3         8
                56.07          1.82        1.6402    3   5   1         8
                56.50         22.89        1.6288    0   2   3         4
                56.74          8.69        1.6225    1   2   3         8
                57.20         12.33        1.6104    9   0   2         4
                57.36         21.23        1.6064    9   3   1         8
                58.20          2.90        1.5853    9   1   2         8
                59.47          1.92        1.5543    5   1   3         8
                59.58          8.81        1.5517    6   5   0         4
                59.73          1.02        1.5483    5   4   2         8
                59.88          4.56        1.5447    5   5   1         8
                60.47         11.34        1.5309   12   0   0         2
                61.12          4.73        1.5163    9   2   2         8
                61.63         21.64        1.5048    1   3   3         8
                61.80         27.42        1.5011   10   3   1         8
                61.84          1.10        1.5002   11   2   1         8
                61.85         24.28        1.5000    0   6   0         2
                62.32         16.80        1.4899    2   3   3         8
                62.36          1.03        1.4891    5   2   3         8
                62.41          2.39        1.4879    6   5   1         8
                62.83          1.69        1.4790    1   5   2         8
                63.45          1.26        1.4660    3   3   3         8
                64.63         11.44        1.4421    3   5   2         8
                65.19          2.90        1.4311    7   4   2         8
                65.34          2.49        1.4282    7   5   1         8
                65.41          1.02        1.4267   10   2   2         8
                65.46          1.64        1.4259    4   6   0         4
                66.37         13.90        1.4085   11   0   2         4
                66.51         24.01        1.4058   11   3   1         8
                66.99          1.60        1.3969   12   2   1         8
                67.01          3.78        1.3966    5   3   3         8
                67.29          5.66        1.3915   11   1   2         8
                67.70          2.63        1.3840    7   2   3         8
                67.92          4.75        1.3801    0   4   3         4
                68.16          3.13        1.3758    5   5   2         8
                69.40         13.53        1.3542    6   3   3         8
                69.70          1.06        1.3490   13   1   1         8
                70.94          1.22        1.3286    8   2   3         8
                71.36          1.27        1.3217    4   4   3         8
                71.49         10.67        1.3197   12   3   1         8
                72.07          1.68        1.3105    0   0   4         2
                72.18          3.16        1.3088    7   3   3         8
                72.23          7.73        1.3079   12   1   2         8
                72.27          1.04        1.3074    9   5   1         8
                72.28          2.97        1.3072    1   0   4         4
                72.37          1.33        1.3057   13   2   1         8
                72.84          2.82        1.2985   14   1   0         4
                73.16          3.17        1.2936    1   1   4         8
                73.29          1.17        1.2916    7   5   2         8
                73.46          9.78        1.2890    2   6   2         8
                73.97          1.51        1.2815    3   0   4         4
                74.51          9.65        1.2734    3   6   2         8
                75.42          1.47        1.2604   14   1   1         8
                75.43          8.27        1.2602    4   0   4         4
                75.57          1.36        1.2582    0   2   4         4
                75.74          2.69        1.2558    8   6   0         4
                75.89          2.00        1.2538   10   1   3         8
                76.43          3.39        1.2463    8   5   2         8
                76.72          3.07        1.2422    2   5   3         8
                77.75          1.50        1.2283    3   5   3         8
                77.84          4.82        1.2271    5   6   2         8
                78.16          1.00        1.2229    5   1   4         8
                78.88          1.21        1.2135    4   2   4         8
                79.93          7.19        1.2002    9   5   2         8
                80.73          1.53        1.1904    5   2   4         8
                82.28          1.13        1.1718   14   3   1         8
                82.75          3.61        1.1663    7   6   2         8
                84.35          2.61        1.1482   16   0   0         2
                85.27          4.02        1.1382    8   0   4         4
                87.43          1.80        1.1155   12   2   3         8
                87.73          1.45        1.1125   16   2   0         4
                88.02          1.01        1.1096   15   0   2         4
                88.05          2.67        1.1092   11   5   2         8
                88.64          1.64        1.1034    8   2   4         8
                89.23          5.92        1.0976    9   6   2         8
                89.74          1.33        1.0927    4   8   0         4
                89.80          2.02        1.0922    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.