Ferrosilite
      Smyth J R
      American Mineralogist 58 (1973) 636-648
      An orthopyroxene structure up to 850 C
      T = 850 C
      _database_code_amcsd 0000367

      CELL PARAMETERS:   18.5460   9.0810   5.2980   90.000   90.000   90.000
      SPACE GROUP: Pbca      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    892.269
      Density (g/cm3):      3.301
      MAX. ABS. INTENSITY / VOLUME**2:      6.807167037    
      RIR:      0.671
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.65         29.64        6.4881    2   1   0         4
                19.14          5.26        4.6365    4   0   0         2
                19.55         14.37        4.5405    0   2   0         2
                19.98          1.52        4.4429    1   1   1         8
                24.20          1.94        3.6781    3   1   1         8
                26.29          6.79        3.3895    1   2   1         8
                27.38         21.25        3.2569    4   1   1         8
                27.49         45.01        3.2440    4   2   0         4
                27.60         96.70        3.2315    2   2   1         8
                29.67         68.76        3.0110    3   2   1         8
                30.55        100.00        2.9261    6   1   0         4
                31.04         12.74        2.8815    5   1   1         8
                31.08          4.36        2.8776    2   3   0         4
                32.36         36.85        2.7666    4   2   1         8
                34.19          2.19        2.6224    1   0   2         4
                34.46         44.06        2.6023    1   3   1         8
                35.03          1.57        2.5614    6   1   1         8
                35.24         34.33        2.5471    2   0   2         4
                35.50         20.58        2.5287    2   3   1         8
                35.55         31.81        2.5252    5   2   1         8
                35.64          3.93        2.5194    1   1   2         8
                36.92         24.22        2.4349    3   0   2         4
                37.17          1.66        2.4187    3   3   1         8
                38.27          3.34        2.3518    3   1   2         8
                39.17          2.32        2.3001    4   0   2         4
                39.29          2.27        2.2929    7   1   1         8
                39.41          3.85        2.2865    4   3   1         8
                40.46          3.03        2.2297    4   1   2         8
                41.77          1.42        2.1627    6   3   0         4
                41.91         23.42        2.1557    5   0   2         4
                42.11          1.95        2.1458    3   2   2         8
                42.14         20.97        2.1445    5   3   1         8
                43.06          8.39        2.1008    7   2   1         8
                43.13         10.74        2.0974    5   1   2         8
                43.65          3.98        2.0736    1   4   1         8
                43.77          3.38        2.0680    8   1   1         8
                44.50         11.10        2.0358    2   4   1         8
                45.29         15.42        2.0023    6   3   1         8
                45.90          3.26        1.9771    3   4   1         8
                47.25          7.52        1.9238    8   2   1         8
                47.80          2.55        1.9029    4   4   1         8
                47.95          2.10        1.8973    3   3   2         8
                48.60          8.34        1.8733    7   0   2         4
                48.81          1.95        1.8659    7   3   1         8
                49.57          3.66        1.8390    6   2   2         8
                49.79          2.15        1.8314    4   3   2         8
                50.16          5.52        1.8187    5   4   1         8
                50.21          2.90        1.8171   10   1   0         4
                51.26         14.12        1.7823    2   5   0         4
                51.68          1.82        1.7688    9   2   1         8
                52.64          6.72        1.7386    8   3   1         8
                52.87          3.53        1.7317    7   2   2         8
                53.49          3.27        1.7132    8   1   2         8
                53.80          1.70        1.7040    2   1   3         8
                54.11          5.14        1.6948    2   4   2         8
                55.33          3.33        1.6605    3   4   2         8
                55.86         22.54        1.6459    0   2   3         4
                56.10          3.45        1.6394    1   2   3         8
                56.59          5.94        1.6265    9   0   2         4
                56.76          3.81        1.6220    8   4   0         4
                56.77         14.16        1.6217    9   3   1         8
                57.18          1.38        1.6110    4   5   1         8
                57.57          3.25        1.6010    9   1   2         8
                58.99          5.08        1.5659    6   5   0         4
                59.28          1.98        1.5589    5   5   1         8
                59.84          6.50        1.5455   12   0   0         2
                60.46          1.78        1.5312    9   2   2         8
                60.94          5.36        1.5202    1   3   3         8
                61.16         12.17        1.5153   10   3   1         8
                61.24         12.86        1.5135    0   6   0         2
                61.31          1.98        1.5120    6   1   3         8
                61.62         12.17        1.5052    2   3   3         8
                62.17          1.07        1.4931    1   5   2         8
                63.95          7.35        1.4558    3   5   2         8
                64.70          1.02        1.4408   10   2   2         8
                65.64          5.38        1.4223   11   0   2         4
                65.81         14.65        1.4191   11   3   1         8
                66.54          4.92        1.4052   11   1   2         8
                67.15          4.48        1.3939    0   4   3         4
                67.43          1.23        1.3890    5   5   2         8
                68.61         10.10        1.3679    6   3   3         8
                70.12          2.17        1.3420    8   2   3         8
                70.71          6.58        1.3322   12   3   1         8
                71.35          1.06        1.3219    7   3   3         8
                71.42          4.86        1.3207   12   1   2         8
                71.58          1.06        1.3182   13   2   1         8
                72.02          1.01        1.3112    2   0   4         4
                72.05          2.84        1.3108   14   1   0         4
                72.27          2.29        1.3074    1   1   4         8
                72.67          6.94        1.3011    2   6   2         8
                72.89          1.02        1.2977    2   1   4         8
                73.06          1.92        1.2951    3   0   4         4
                73.70          5.97        1.2854    3   6   2         8
                74.51          3.52        1.2736    4   0   4         4
                74.93          1.69        1.2673    8   6   0         4
                75.58          2.73        1.2581    8   5   2         8
                75.84          1.43        1.2545    2   5   3         8
                76.35          1.10        1.2474    5   0   4         4
                76.98          2.07        1.2387    5   6   2         8
                79.03          4.26        1.2116    9   5   2         8
                84.19          1.45        1.1500    8   0   4         4
                86.35          1.55        1.1267   12   2   3         8
                87.01          1.88        1.1198   11   5   2         8
                88.18          2.34        1.1080    9   6   2         8
                88.78          1.45        1.1021    2   8   1         8
                89.77          2.54        1.0925    3   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.