FeMnSiO4
      Redfern S A T, Henderson C M B, Knight K S, Wood B J
      European Journal of Mineralogy 9 (1997) 287-300
      High-temperature order-disorder in (Fe0.5Mn0.5)2SiO4 and (Mg0.5Mn0.5)2SiO4
      olivines: an in situ neutron diffraction study
      Sample: T = 800 C, Data collected on cooling
      _database_code_amcsd 0006671

      CELL PARAMETERS:    4.8957  10.6710   6.2316   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    325.551
      Density (g/cm3):      4.138
      MAX. ABS. INTENSITY / VOLUME**2:      19.20677962    
      RIR:      1.511
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.62         11.42        5.3355    0   2   0         2
                19.95          7.51        4.4497    1   1   0         4
                21.93          8.20        4.0529    0   2   1         4
                23.10          3.32        3.8497    1   0   1         4
                24.58         54.26        3.6213    1   1   1         8
                24.68          7.25        3.6073    1   2   0         4
                28.59          5.75        3.1219    1   2   1         8
                28.65          6.14        3.1158    0   0   2         2
                31.08         95.09        2.8777    1   3   0         4
                33.30         29.49        2.6906    0   2   2         4
                33.59          8.39        2.6677    0   4   0         2
                34.33         57.13        2.6125    1   3   1         8
                35.16        100.00        2.5523    1   1   2         8
                36.64         15.08        2.4525    0   4   1         4
                36.71         12.96        2.4478    2   0   0         2
                37.70          8.52        2.3859    2   1   0         4
                38.17          9.45        2.3580    1   2   2         8
                38.43         11.32        2.3425    1   4   0         4
                40.48          5.27        2.2282    2   1   1         8
                42.78          4.31        2.1140    1   3   2         8
                43.18          2.22        2.0953    2   2   1         8
                44.72          2.97        2.0264    0   4   2         4
                46.41          2.08        1.9564    1   5   0         4
                48.03          1.48        1.8943    2   1   2         8
                48.36          8.25        1.8822    1   1   3         8
                48.79          2.94        1.8666    1   5   1         8
                50.40         56.63        1.8106    2   2   2         8
                50.61         16.09        1.8036    2   4   0         4
                50.72          2.77        1.8001    1   2   3         8
                52.84         10.87        1.7325    2   4   1         8
                53.59         11.08        1.7102    0   6   1         4
                54.48         11.80        1.6843    1   3   3         8
                55.46         14.69        1.6569    1   5   2         8
                56.12          7.02        1.6390    0   4   3         4
                57.10          3.43        1.6131    3   1   0         4
                59.16          3.84        1.5617    3   1   1         8
                59.19          3.80        1.5610    2   4   2         8
                59.21          1.44        1.5605    3   2   0         4
                59.32         16.17        1.5579    0   0   4         2
                59.33          2.82        1.5576    2   5   1         8
                59.88         16.78        1.5446    0   6   2         4
                61.23          1.66        1.5138    3   2   1         8
                62.63          4.47        1.4832    3   3   0         4
                63.96         10.17        1.4555    1   7   0         4
                64.59          3.99        1.4429    3   3   1         8
                65.12          7.17        1.4325    3   1   2         8
                66.72          2.17        1.4019    2   6   1         8
                67.08          5.94        1.3953    3   2   2         8
                68.49          9.90        1.3700    1   3   4         8
                68.95          1.79        1.3619    2   4   3         8
                69.14          2.52        1.3586    3   4   1         8
                69.59          3.50        1.3510    0   6   3         4
                69.93          1.47        1.3453    0   4   4         4
                71.83          3.72        1.3143    2   0   4         4
                72.34          2.51        1.3063    2   6   2         8
                72.46          1.05        1.3044    2   1   4         8
                74.62          1.50        1.2718    2   5   3         8
                77.91          1.13        1.2262    0   8   2         4
                78.08          2.39        1.2239    4   0   0         2
                79.38          1.71        1.2071    3   3   3         8
                80.20          4.83        1.1969    3   5   2         8
                81.35          1.11        1.1828    2   6   3         8
                81.67          3.44        1.1790    2   4   4         8
                83.62          1.70        1.1564    3   4   3         8
                84.77          2.23        1.1437    1   3   5         8
                85.78          1.80        1.1328    4   1   2         8
                87.57          2.68        1.1141    4   2   2         8
                87.58          2.61        1.1140    3   7   0         4
                87.74          1.18        1.1124    4   4   0         4
                89.36          1.45        1.0964    2   8   2         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.