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 = 3.60 GPa
      _database_code_amcsd 0001562

      CELL PARAMETERS:    9.2470   9.2470   2.7100   90.000   90.000   90.000
      SPACE GROUP: I4/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    231.724
      Density (g/cm3):      3.988
      MAX. ABS. INTENSITY / VOLUME**2:      18.82655670    
      RIR:      1.537
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.54         12.29        6.5386    1   1   0         4
                19.20         19.87        4.6235    2   0   0         4
                27.28         16.81        3.2693    2   2   0         4
                30.57         70.21        2.9242    1   3   0         4
                30.57         29.79        2.9242    3   1   0         4
                34.49          7.40        2.6006    1   0   1         8
                38.96          5.58        2.3117    4   0   0         4
                39.77          4.85        2.2667    2   1   1         8
                39.77         24.58        2.2667    1   2   1         8
                41.43          1.32        2.1795    3   3   0         4
                43.78          1.55        2.0677    4   2   0         4
                43.78         15.63        2.0677    2   4   0         4
                44.52         72.88        2.0352    3   0   1         8
                48.90          6.14        1.8627    3   2   1         8
                50.31          2.57        1.8135    1   5   0         4
                50.31          9.26        1.8135    5   1   0         4
                53.00         21.55        1.7278    4   1   1         8
                53.00          8.10        1.7278    1   4   1         8
                56.28          2.20        1.6347    4   4   0         4
                58.17          1.47        1.5858    3   5   0         4
                60.03         24.24        1.5412    6   0   0         4
                60.62          1.33        1.5276    4   3   1         8
                64.21          6.86        1.4505    5   2   1         8
                64.21         28.07        1.4505    2   5   1         8
                69.35         12.12        1.3550    0   0   2         2
                71.11          4.96        1.3258    6   1   1         8
                72.24          1.58        1.3077    1   7   0         4
                74.44          3.57        1.2745    4   5   1         8
                74.44         25.83        1.2745    5   4   1         8
                76.03          1.18        1.2517    2   2   2         8
                77.67          6.95        1.2294    1   3   2         8
                77.67          3.10        1.2294    3   1   2         8
                77.72          2.11        1.2286    3   6   1         8
                77.72          2.34        1.2286    6   3   1         8
                78.83          3.84        1.2142    7   3   0         4
                78.83          2.41        1.2142    3   7   0         4
                82.52          1.24        1.1690    4   0   2         8
                85.72          2.50        1.1333    2   4   2         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.