KAlSi3O8
      Zhang J, Ko J, Hazen R M, Prewitt C T
      American Mineralogist 78 (1993) 493-499
      High-pressure crystal chemistry of KAlSi3O8 hollandite
      Pressure = 1.64 GPa
      _database_code_amcsd 0001560

      CELL PARAMETERS:    9.2850   9.2850   2.7170   90.000   90.000   90.000
      SPACE GROUP: I4/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    234.236
      Density (g/cm3):      3.946
      MAX. ABS. INTENSITY / VOLUME**2:      18.68590519    
      RIR:      1.542
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.49         11.74        6.5655    1   1   0         4
                19.12         20.24        4.6425    2   0   0         4
                27.16         16.07        3.2827    2   2   0         4
                30.44         69.78        2.9362    1   3   0         4
                30.44         30.22        2.9362    3   1   0         4
                34.39          7.06        2.6076    1   0   1         8
                38.79          5.74        2.3212    4   0   0         4
                39.64          4.40        2.2735    2   1   1         8
                39.64         23.94        2.2735    1   2   1         8
                41.25          1.15        2.1885    3   3   0         4
                43.59          1.40        2.0762    4   2   0         4
                43.59         16.87        2.0762    2   4   0         4
                44.37         71.87        2.0418    3   0   1         8
                48.72          6.09        1.8691    3   2   1         8
                50.09          2.74        1.8209    1   5   0         4
                50.09          9.33        1.8209    5   1   0         4
                52.80         21.84        1.7338    4   1   1         8
                52.80          8.38        1.7338    1   4   1         8
                56.03          2.16        1.6414    4   4   0         4
                57.91          1.43        1.5924    3   5   0         4
                59.76         23.84        1.5475    6   0   0         4
                60.38          1.30        1.5331    4   3   1         8
                63.95          7.41        1.4558    5   2   1         8
                63.95         27.49        1.4558    2   5   1         8
                69.15         12.07        1.3585    0   0   2         2
                70.80          4.72        1.3308    6   1   1         8
                70.80          1.04        1.3308    1   6   1         8
                71.90          1.52        1.3131    1   7   0         4
                74.12         26.09        1.2793    5   4   1         8
                74.12          3.78        1.2793    4   5   1         8
                75.78          1.11        1.2553    2   2   2         8
                77.38          1.92        1.2333    3   6   1         8
                77.38          2.26        1.2333    6   3   1         8
                77.40          6.75        1.2329    1   3   2         8
                77.40          3.05        1.2329    3   1   2         8
                78.44          3.63        1.2192    7   3   0         4
                78.44          2.46        1.2192    3   7   0         4
                82.22          1.29        1.1725    4   0   2         8
                85.40          2.66        1.1368    2   4   2         8
                89.58          3.32        1.0942    6   6   0         4
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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.