Mullite
      Fischer R X, Schmucker M, Angerer P, Schneider H
      American Mineralogist 86 (2001) 1513-1518
      Crystal structures of Na and K aluminate mullites
      Sample: Na
      _database_code_amcsd 0002749

      CELL PARAMETERS:    7.6819   7.6810   2.9184   90.000   90.000   90.000
      SPACE GROUP: Pbam      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    172.200
      Density (g/cm3):      3.149
      MAX. ABS. INTENSITY / VOLUME**2:      5.488700231    
      RIR:      0.568
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.32         92.92        5.4316    1   1   0         4
                25.94         77.69        3.4354    2   1   0         4
                25.94         22.31        3.4351    1   2   0         4
                30.63         32.75        2.9184    0   0   1         2
                32.98         81.68        2.7158    2   2   0         4
                34.90         74.14        2.5708    1   1   1         8
                37.01         13.46        2.4290    1   3   0         4
                38.75         31.09        2.3237    2   0   1         4
                40.56         13.71        2.2242    2   1   1         8
                40.56         46.06        2.2241    1   2   1         8
                42.43          3.10        2.1305    3   2   0         4
                42.43         41.07        2.1304    2   3   0         4
                47.33          5.80        1.9205    4   0   0         2
                47.34          2.12        1.9203    0   4   0         2
                48.78         16.30        1.8670    3   1   1         8
                48.88          1.59        1.8631    4   1   0         4
                48.89          4.39        1.8629    1   4   0         4
                53.23         11.23        1.7208    3   2   1         8
                53.23          1.48        1.7207    2   3   1         8
                53.34         10.72        1.7177    4   2   0         4
                53.34          6.43        1.7176    2   4   0         4
                57.44          5.23        1.6043    4   0   1         4
                57.45         17.66        1.6041    0   4   1         4
                60.14         56.92        1.5385    3   3   1         8
                61.56          1.20        1.5064    1   5   0         4
                62.77         20.23        1.4803    4   2   1         8
                62.77          2.14        1.4802    2   4   1         8
                63.78         32.47        1.4592    0   0   2         2
                65.43          8.21        1.4265    5   2   0         4
                65.43          4.89        1.4263    2   5   0         4
                66.33          2.12        1.4092    1   1   2         8
                69.10          5.82        1.3594    3   4   1         8
                69.18          4.13        1.3579    4   4   0         4
                70.06          5.42        1.3431    2   1   2         8
                70.06          1.54        1.3431    1   2   2         8
                70.32          5.44        1.3387    5   1   1         8
                70.33         18.65        1.3386    1   5   1         8
                71.63          3.67        1.3174    5   3   0         4
                71.64          4.77        1.3173    3   5   0         4
                73.70         10.88        1.2854    2   2   2         8
                73.96         18.41        1.2816    5   2   1         8
                73.97         12.54        1.2815    2   5   1         8
                74.05          3.49        1.2803    6   0   0         2
                74.06          1.44        1.2802    0   6   0         2
                75.24          2.97        1.2629    6   1   0         4
                75.25          1.77        1.2628    1   6   0         4
                76.09          1.15        1.2509    3   1   2         8
                76.10          3.84        1.2508    1   3   2         8
                79.64          5.20        1.2039    2   3   2         8
                79.89          2.23        1.2007    5   3   1         8
                79.89          1.97        1.2007    3   5   1         8
                84.63          1.66        1.1451    6   3   0         4
                86.87          4.69        1.1213    2   6   1         8
                87.77          3.61        1.1121    4   2   2         8
                87.77          2.36        1.1121    2   4   2         8
                88.02          2.76        1.1096    5   4   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.