Forsterite
      Ottonello G, Della Giusta A, Molin G M
      American Mineralogist 74 (1989) 411-421
      Cation ordering in Ni-Mg olivines
      sample Ni.30B, synthesized at 902 C, then quenched
      Mg1.4Ni.6SiO4
      _database_code_amcsd 0001216

      CELL PARAMETERS:    4.7458  10.1986   5.9563   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    288.288
      Density (g/cm3):      3.716
      MAX. ABS. INTENSITY / VOLUME**2:      14.89902879    
      RIR:      1.305
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.39         44.73        5.0993    0   2   0         2
                20.64         10.24        4.3028    1   1   0         4
                22.96         31.35        3.8736    0   2   1         4
                23.98         10.68        3.7117    1   0   1         4
                25.54         11.19        3.4879    1   1   1         8
                25.64          7.44        3.4740    1   2   0         4
                29.77          3.49        3.0009    1   2   1         8
                30.00          1.58        2.9781    0   0   2         2
                32.40         65.88        2.7636    1   3   0         4
                34.89          9.53        2.5717    0   2   2         4
                35.20          2.62        2.5496    0   4   0         2
                35.82         44.06        2.5069    1   3   1         8
                36.70        100.00        2.4488    1   1   2         8
                37.92          3.97        2.3729    2   0   0         2
                38.40          6.79        2.3439    0   4   1         4
                38.97          5.10        2.3112    2   1   0         4
                39.87         22.04        2.2611    1   2   2         8
                40.15         14.88        2.2460    1   4   0         4
                41.93          9.99        2.1546    2   1   1         8
                42.00          3.32        2.1514    2   2   0         4
                44.74         13.06        2.0258    1   3   2         8
                46.68          1.57        1.9458    2   3   0         4
                46.91          5.68        1.9368    0   4   2         4
                48.58          9.45        1.8740    1   5   0         4
                50.63          2.32        1.8028    1   1   3         8
                51.10          2.32        1.7876    1   5   1         8
                52.47         56.94        1.7439    2   2   2         8
                52.70         20.05        1.7370    2   4   0         4
                53.13          2.31        1.7238    1   2   3         8
                55.07          7.22        1.6676    2   4   1         8
                56.28          6.99        1.6345    0   6   1         4
                56.49          1.50        1.6289    2   3   2         8
                57.12         10.33        1.6125    1   3   3         8
                58.16          7.74        1.5861    1   5   2         8
                58.96          4.80        1.5665    0   4   3         4
                59.10          4.96        1.5632    3   1   0         4
                61.31          1.87        1.5120    3   1   1         8
                61.36          1.27        1.5109    3   2   0         4
                61.58          1.98        1.5060    2   1   3         8
                61.83          6.98        1.5005    2   4   2         8
                61.99          2.84        1.4971    2   5   1         8
                62.36         19.67        1.4891    0   0   4         2
                62.96         29.76        1.4762    0   6   2         4
                65.03          4.20        1.4343    3   3   0         4
                65.28          2.22        1.4294    0   2   4         4
                67.13          4.13        1.3944    3   3   1         8
                67.22          9.85        1.3928    1   7   0         4
                67.69          8.84        1.3841    3   1   2         8
                69.80         10.10        1.3474    3   2   2         8
                69.99          3.61        1.3442    3   4   0         4
                72.02          2.30        1.3112    3   4   1         8
                72.04          9.35        1.3109    1   3   4         8
                73.32          2.32        1.2912    0   6   3         4
                75.35          2.50        1.2613    2   0   4         4
                75.91          2.94        1.2535    2   6   2         8
                76.15          1.31        1.2500    3   5   0         4
                76.80          1.15        1.2411    1   4   4         8
                77.09          1.25        1.2372    3   0   3         4
                78.37          1.56        1.2202    2   5   3         8
                81.05          3.90        1.1865    4   0   0         2
                82.26          1.36        1.1720    0   8   2         4
                82.79          3.49        1.1658    1   5   4         8
                83.07          2.02        1.1626    3   3   3         8
                83.30          1.12        1.1600    0   2   5         4
                83.95          5.09        1.1526    3   5   2         8
                84.55          1.33        1.1460    2   7   2         8
                85.31          1.05        1.1378    1   8   2         8
                85.40          1.58        1.1367    3   6   1         8
                85.99          5.93        1.1305    2   4   4         8
                86.70          3.00        1.1230    2   8   0         4
                87.67          2.09        1.1131    3   4   3         8
                89.42          1.32        1.0958    4   1   2         8
                89.61          2.59        1.0940    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.