Carnegieite
      Barth F, Posnjak E
      Zeitschrift fur Kristallographie 81 (1932) 135-141
      Silicate structures of the cristobalite type. The crystal structure of
      alpha-carnegieite (Na Al Si O4)
      _cod_database_code 1010957
      _database_code_amcsd 0017677

      CELL PARAMETERS:    7.3700   7.3700   7.3700   90.000   90.000   90.000
      SPACE GROUP: P2_13     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    400.316
      Density (g/cm3):      2.357
      MAX. ABS. INTENSITY / VOLUME**2:      22.92096923    
      RIR:      3.167
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.88        100.00        4.2551    1   1   1         4
                24.15          5.92        3.6850    2   0   0         6
                27.05          2.89        3.2960    2   0   1        12
                27.05          1.61        3.2960    2   1   0        12
                29.69          6.45        3.0088    2   1   1        12
                34.42         62.59        2.6057    2   2   0        12
                36.58          1.50        2.4567    2   2   1        12
                38.63          3.25        2.3306    3   0   1        12
                40.60          3.98        2.2221    3   1   1        12
                42.49          8.73        2.1275    2   2   2         4
                44.31          2.34        2.0441    3   0   2        12
                44.31          2.09        2.0441    3   2   0        12
                46.08          3.15        1.9697    3   1   2        12
                49.47          3.63        1.8425    4   0   0         6
                51.10          1.41        1.7875    3   2   2        12
                52.69          1.09        1.7371    4   1   1        12
                54.25          9.55        1.6908    3   3   1        12
                55.78          1.28        1.6480    4   0   2        12
                55.78          1.97        1.6480    4   2   0        12
                57.29          1.02        1.6083    4   2   1        12
                57.29          1.43        1.6083    4   1   2        12
                61.65         24.99        1.5044    4   2   2        12
                65.85          1.86        1.4184    5   1   1        12
                65.85          1.73        1.4184    3   3   3         4
                72.56          8.91        1.3028    4   4   0        12
                73.87          1.06        1.2830    4   4   1        12
                75.17          1.16        1.2639    5   3   0        12
                76.46          3.05        1.2458    5   1   3        12
                76.46          2.59        1.2458    5   3   1        12
                80.30          1.10        1.1956    5   2   3        12
                82.84          4.61        1.1653    6   0   2        12
                82.84          4.49        1.1653    6   2   0        12
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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.