Willemite
      Marumo F, Syono Y
      Acta Crystallographica B27 (1971) 1868-1870
      The crystal structure of Zn2SiO4-II, a high-pressure phase of willemite
      _database_code_amcsd 0009399

      CELL PARAMETERS:    7.0069   7.0069   6.4637   90.000   90.000   90.000
      SPACE GROUP: I-42d     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    317.346
      Density (g/cm3):      4.665
      MAX. ABS. INTENSITY / VOLUME**2:      70.52653272    
      RIR:      4.923
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.68          1.12        4.7510    1   0   1         8
                25.42         17.57        3.5034    2   0   0         4
                31.73        100.00        2.8197    2   1   1         8
                33.09         74.62        2.7069    1   1   2         4
                36.26          2.50        2.4773    2   2   0         4
                40.72         11.31        2.2158    3   1   0         8
                41.09          9.46        2.1966    3   0   1         8
                43.97          3.71        2.0594    1   0   3         8
                48.94         30.68        1.8611    3   2   1         8
                49.90          7.68        1.8275    3   1   2         8
                51.47         12.44        1.7754    2   1   3         8
                52.22          3.85        1.7517    4   0   0         4
                55.95          5.16        1.6436    4   1   1         8
                56.99          6.18        1.6159    0   0   4         2
                60.08         15.63        1.5401    4   0   2         8
                63.23          1.42        1.4706    3   3   2         4
                63.39          9.73        1.4674    2   0   4         8
                64.58         22.06        1.4431    3   2   3         8
                66.30         10.52        1.4098    4   2   2         8
                68.25          9.55        1.3742    5   1   0         8
                68.51          8.22        1.3696    4   3   1         8
                70.59          4.59        1.3343    4   1   3         8
                72.38          3.92        1.3056    3   1   4         8
                74.37          5.51        1.2756    5   2   1         8
                74.66          1.43        1.2713    1   0   5         8
                79.81          1.08        1.2017    5   3   0         8
                80.35          3.09        1.1950    2   1   5         8
                82.03          2.35        1.1748    4   3   3         8
                85.65          2.63        1.1341    6   1   1         8
                86.38          3.53        1.1263    5   3   2         8
                87.60          1.86        1.1138    5   2   3         8
                89.16          4.02        1.0983    6   0   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.