Mg2SiO4
      Finkelstein G J, Dera P K, Jahn S, Oganov A R, Holl C M, Meng Y, Duffy T S
      American Mineralogist 99 (2014) 35-43
      Phase transitions and equation of state of forsterite to 90 GPa from single-crystal
      X-ray diffraction and molecular modeling
      Note: P = 58.2 GPa
      Locality: Synthetic
      _database_code_amcsd 0020329

      CELL PARAMETERS:    2.6400   8.5960   9.0400   90.000   90.000   90.000
      SPACE GROUP: Cmc2_1    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    205.149
      Density (g/cm3):      4.555
      MAX. ABS. INTENSITY / VOLUME**2:      10.15245382    
      RIR:      0.726
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                19.64         51.23        4.5200    0   0   2         1
                22.91          1.40        3.8816    0   2   1         2
                35.57         10.28        2.5237    1   1   0         4
                36.41         92.46        2.4673    0   2   3         2
                36.98         11.35        2.4307    1   1   1         4
                39.89          1.75        2.2600    0   0   4         1
                40.96         28.91        2.2035    1   1   2         4
                42.04          7.98        2.1490    0   4   0         2
                43.27         15.87        2.0907    0   4   1         2
                45.34         33.77        2.0003    0   2   4         2
                46.79         18.12        1.9415    1   3   0         4
                46.81          2.94        1.9408    0   4   2         2
                46.96         12.61        1.9348    1   1   3         4
                47.92        100.00        1.8983    1   3   1         4
                51.21         65.17        1.7839    1   3   2         4
                52.29          8.27        1.7496    0   4   3         2
                54.50          4.63        1.6836    1   1   4         4
                55.11         21.41        1.6666    0   2   5         2
                56.37         10.14        1.6321    1   3   3         4
                59.34          6.64        1.5573    0   4   4         2
                61.55          4.12        1.5067    0   0   6         1
                63.13         14.59        1.4727    1   3   4         4
                63.27         31.58        1.4697    1   1   5         4
                65.62          6.69        1.4227    1   5   1         4
                65.67          2.47        1.4218    0   2   6         2
                66.02          1.32        1.4150    0   6   1         2
                68.34         16.97        1.3726    1   5   2         4
                68.73          2.77        1.3657    0   6   2         2
                71.27          3.99        1.3231    1   3   5         4
                71.47         23.92        1.3200    2   0   0         2
                72.76         17.87        1.2997    1   5   3         4
                73.14         19.23        1.2939    0   6   3         2
                73.16         20.84        1.2937    1   1   6         4
                74.95          1.34        1.2671    2   0   2         2
                77.12          4.33        1.2368    0   2   7         2
                77.35          5.54        1.2337    0   4   6         2
                79.15          3.37        1.2100    0   6   4         2
                80.73          4.13        1.1903    1   3   6         4
                82.96         12.75        1.1639    2   2   3         4
                84.22          1.13        1.1496    1   1   7         4
                86.04          1.88        1.1300    0   0   8         1
                86.53          2.57        1.1248    2   4   0         4
                86.72          1.53        1.1229    0   6   5         2
                87.37          1.97        1.1162    2   4   1         4
                87.64          2.08        1.1134    1   7   0         4
                88.47          1.74        1.1051    1   7   1         4
                88.81          3.98        1.1017    2   2   4         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.