Forsterite
      Henderson C M B, Redfern S A T, Smith R I, Knight K S, Charnock J M
      American Mineralogist 86 (2001) 1170-1187
      Composition and temperature dependence of cation ordering in Ni-Mg olivine solid solutions:
      A time-of-flight neutron powder diffraction and EXAFS study
      Sample: Mg50Ni50 at T = 300 C
      _database_code_amcsd 0002682

      CELL PARAMETERS:    4.7518  10.2259   5.9667   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    289.926
      Density (g/cm3):      4.011
      MAX. ABS. INTENSITY / VOLUME**2:      18.76962084    
      RIR:      1.524
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.34         36.03        5.1129    0   2   0         2
                20.61         17.01        4.3092    1   1   0         4
                22.91         20.79        3.8825    0   2   1         4
                23.94          8.41        3.7170    1   0   1         4
                25.50         21.17        3.4934    1   1   1         8
                25.59          5.98        3.4807    1   2   0         4
                29.71          2.98        3.0065    1   2   1         8
                29.95          1.27        2.9833    0   0   2         2
                32.32         70.58        2.7697    1   3   0         4
                34.82         17.73        2.5768    0   2   2         4
                35.10          5.44        2.5565    0   4   0         2
                35.74         46.24        2.5122    1   3   1         8
                36.64        100.00        2.4529    1   1   2         8
                37.87          7.29        2.3759    2   0   0         2
                38.30          7.40        2.3499    0   4   1         4
                38.92          4.12        2.3142    2   1   0         4
                39.80         17.43        2.2652    1   2   2         8
                40.05         11.50        2.2513    1   4   0         4
                41.87          8.09        2.1576    2   1   1         8
                41.93          2.70        2.1546    2   2   0         4
                44.64         12.77        2.0298    1   3   2         8
                46.60          1.34        1.9491    2   3   0         4
                46.80          4.89        1.9412    0   4   2         4
                48.46          8.11        1.8786    1   5   0         4
                50.54          3.73        1.8058    1   1   3         8
                50.96          3.00        1.7919    1   5   1         8
                52.38         60.20        1.7467    2   2   2         8
                52.59         22.08        1.7403    2   4   0         4
                53.03          1.86        1.7269    1   2   3         8
                54.96          7.46        1.6707    2   4   1         8
                56.12          7.10        1.6388    0   6   1         4
                56.39          1.28        1.6317    2   3   2         8
                57.01         10.87        1.6155    1   3   3         8
                58.02         10.72        1.5897    1   5   2         8
                58.83          4.59        1.5698    0   4   3         4
                59.01          4.88        1.5653    3   1   0         4
                61.22          2.65        1.5140    3   1   1         8
                61.27          1.01        1.5130    3   2   0         4
                61.47          1.65        1.5084    2   1   3         8
                61.71          5.90        1.5033    2   4   2         8
                61.84          2.40        1.5002    2   5   1         8
                62.24         19.05        1.4917    0   0   4         2
                62.79         28.17        1.4799    0   6   2         4
                64.92          4.95        1.4364    3   3   0         4
                65.14          1.77        1.4320    0   2   4         4
                66.31          1.22        1.4096    1   1   4         8
                67.01          4.58        1.3965    3   3   1         8
                67.02         10.81        1.3963    1   7   0         4
                67.59          9.37        1.3861    3   1   2         8
                69.68          8.15        1.3494    3   2   2         8
                69.86          2.86        1.3464    3   4   0         4
                71.88          1.88        1.3134    3   4   1         8
                71.89         10.09        1.3133    1   3   4         8
                72.12          1.17        1.3097    2   4   3         8
                73.12          2.38        1.2942    0   6   3         4
                73.51          1.56        1.2884    0   4   4         4
                75.21          3.33        1.2633    2   0   4         4
                75.72          3.95        1.2561    2   6   2         8
                75.99          1.14        1.2523    3   5   0         4
                78.18          1.31        1.2226    2   5   3         8
                80.93          4.02        1.1879    4   0   0         2
                82.01          1.36        1.1749    0   8   2         4
                82.59          3.00        1.1682    1   5   4         8
                82.91          2.25        1.1645    3   3   3         8
                83.77          5.82        1.1547    3   5   2         8
                84.32          1.09        1.1485    2   7   2         8
                85.20          1.26        1.1389    3   6   1         8
                85.79          6.74        1.1326    2   4   4         8
                86.45          2.97        1.1257    2   8   0         4
                87.49          1.71        1.1150    3   4   3         8
                89.27          1.05        1.0973    4   1   2         8
                89.41          2.75        1.0959    1   3   5         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.