Mg2SiO4
      Baur W H
      American Mineralogist 57 (1972) 709-731
      Computer-simulated crystal structures of observed and hypothetical Mg2SiO4
      polymorphs of low and high density
      Sr2PbO4 structure
      Locality: hypothetical
      _database_code_amcsd 0000283

      CELL PARAMETERS:    4.9800   8.8500   2.7500   90.000   90.000   90.000
      SPACE GROUP: Pbam      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    121.201
      Density (g/cm3):      3.855
      MAX. ABS. INTENSITY / VOLUME**2:      9.887691556    
      RIR:      0.835
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.07          3.05        4.4250    0   2   0         2
                20.46         61.53        4.3401    1   1   0         4
                26.95         16.41        3.3078    1   2   0         4
                32.56          7.27        2.7500    0   0   1         2
                35.36         69.49        2.5381    1   3   0         4
                36.07         11.42        2.4900    2   0   0         2
                37.52          2.95        2.3969    2   1   0         4
                38.76        100.00        2.3229    1   1   1         8
                40.78          3.00        2.2125    0   4   0         2
                41.62          2.69        2.1700    2   2   0         4
                42.76          1.37        2.1147    1   2   1         8
                44.83         51.10        2.0219    1   4   0         4
                47.80          4.22        1.9028    2   3   0         4
                48.83         27.65        1.8651    1   3   1         8
                49.37         10.11        1.8458    2   0   1         4
                50.51         69.30        1.8069    2   1   1         8
                53.13         12.78        1.7238    0   4   1         4
                53.81         43.17        1.7035    2   2   1         8
                55.06          4.42        1.6678    1   5   0         4
                56.49          8.76        1.6290    1   4   1         8
                59.47         22.25        1.5542    3   2   0         4
                63.02         15.30        1.4750    0   6   0         2
                64.40          3.17        1.4467    3   3   0         4
                64.60          1.35        1.4427    2   5   0         4
                65.45         30.90        1.4260    1   5   1         8
                65.90         17.06        1.4173    2   4   1         8
                66.65          9.70        1.4032    3   1   1         8
                68.20         22.78        1.3750    0   0   2         2
                69.47          7.80        1.3531    3   2   1         8
                70.98          5.38        1.3278    3   4   0         4
                72.05          1.79        1.3108    1   1   2         8
                74.04          9.25        1.2803    3   3   1         8
                74.23          4.53        1.2775    2   5   1         8
                74.77          1.40        1.2697    1   2   2         8
                74.81          7.50        1.2691    2   6   0         4
                75.61          4.46        1.2577    1   6   1         8
                77.41          1.02        1.2329    4   1   0         4
                79.23         12.14        1.2090    1   3   2         8
                79.65          2.61        1.2037    2   0   2         4
                80.07          7.88        1.1985    4   2   0         4
                80.54          1.07        1.1927    2   1   2         8
                85.38          7.78        1.1370    1   4   2         8
                86.51          4.38        1.1250    4   1   1         8
                87.06          4.86        1.1193    1   7   1         8
                88.16          1.46        1.1082    3   5   1         8
                88.72          1.37        1.1026    3   6   0         4
                89.12          1.14        1.0987    4   2   1         8
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       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.