Wurtzite-4H
      Chao G Y, Gault R A
      The Canadian Mineralogist 36 (1998) 775-778
      The occurence of two rare polytypes of wurtzite, 4H and 8H,
      at Mont Saint-Hilaire, Quebec
      Locality: Mont Saint-Hilaire, Quebec, Canada
      _database_code_amcsd 0005544

      CELL PARAMETERS:    3.8227   3.8227  12.5200   90.000   90.000  120.000
      SPACE GROUP: P6_3mc    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    158.444
      Density (g/cm3):      4.086
      MAX. ABS. INTENSITY / VOLUME**2:      46.67802916    
      RIR:      3.720
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.93         25.07        3.3106    1   0   0         6
                27.88        100.00        3.2006    1   0   1         6
                28.52         64.45        3.1300    0   0   4         1
                30.55         82.42        2.9265    1   0   2         6
                34.58         12.76        2.5936    1   0   3         6
                39.63          9.37        2.2744    1   0   4         6
                45.41         30.68        1.9971    1   0   5         6
                47.57         72.54        1.9114    1   1   0         6
                51.79         53.82        1.7653    1   0   6         6
                55.52          2.68        1.6553    2   0   0         6
                56.04         11.56        1.6410    2   0   1         6
                56.41         47.30        1.6313    1   1   4         6
                57.60         12.18        1.6003    2   0   2         6
                58.67          5.61        1.5736    1   0   7         6
                59.02          1.90        1.5650    0   0   8         1
                60.14          2.39        1.5387    2   0   3         6
                63.59          1.94        1.4633    2   0   4         6
                67.88          7.71        1.3808    2   0   5         6
                72.95         16.34        1.2968    2   0   6         6
                73.90          2.49        1.2825    1   0   9         6
                76.06          1.80        1.2513    2   1   0        12
                76.51          7.84        1.2451    2   1   1        12
                77.85          8.45        1.2270    2   1   2        12
                78.78          2.01        1.2149    2   0   7         6
                79.09          3.99        1.2109    1   1   8         6
                80.06          1.73        1.1986    2   1   3        12
                82.34         11.06        1.1711    1   0  10         6
                83.14          1.57        1.1619    2   1   4        12
                87.06          6.95        1.1193    2   1   5        12
                88.63          9.14        1.1035    3   0   0         6
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.