Nierite
      Billy M, Labbe J, Selvaraj A, Roult G
      Materials Research Bulletin 18 (1983) 921-934
      Modifications structurales du nitrure de silicium en fonction de la
      temperature
      _cod_database_code 1001238
      _database_code_amcsd 0014301

      CELL PARAMETERS:    7.7523   7.7523   5.6198   90.000   90.000  120.000
      SPACE GROUP: P31c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    292.491
      Density (g/cm3):      3.185
      MAX. ABS. INTENSITY / VOLUME**2:      8.535617309    
      RIR:      0.873
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.19         14.20        6.7137    1   0   0         6
                20.61        100.00        4.3093    1   0   1         6
                22.94         45.67        3.8761    1   1   0         3
                26.55         29.21        3.3568    2   0   0         6
                31.03         90.55        2.8819    2   0   1         6
                31.85          8.18        2.8099    0   0   2         1
                34.61         78.83        2.5920    1   0   2         6
                35.37         90.57        2.5375    2   1   0         6
                38.94         13.96        2.3127    3  -1   1         6
                38.94         37.38        2.3127    2   1   1         6
                39.62          5.98        2.2750    1   1   2         3
                40.30          5.13        2.2379    3   0   0         6
                41.93         31.47        2.1547    2   0   2         6
                43.53         38.21        2.0791    3   0   1         6
                46.88          3.52        1.9381    2   2   0         3
                48.33          5.92        1.8833    2   1   2         6
                48.91          8.14        1.8620    3   1   0         6
                50.59         11.20        1.8043    1   0   3         6
                51.72         17.09        1.7675    4  -1   1         6
                56.23          7.08        1.6358    2   0   3         6
                57.79         18.96        1.5954    4  -2   2         3
                57.79          4.86        1.5954    2   2   2         3
                59.56          2.24        1.5522    4  -1   2         6
                60.07          2.82        1.5402    3   2   0         6
                61.53          5.84        1.5071    3  -1   3         6
                62.53         30.61        1.4854    3   2   1         6
                63.50          1.28        1.4650    4   1   0         6
                64.92         23.64        1.4364    3   0   3         6
                65.88          2.08        1.4177    4   1   1         6
                65.88         23.43        1.4177    5  -1   1         6
                66.56         13.85        1.4050    0   0   4         1
                68.19          3.97        1.3752    1   0   4         6
                69.61         13.43        1.3506    5  -2   2         6
                69.61         17.81        1.3506    3   2   2         6
                70.08          1.11        1.3427    5   0   0         6
                71.42          5.29        1.3209    2  -1   4         3
                71.43          4.90        1.3206    3   1   3         6
                71.43          3.48        1.3206    4  -1   3         6
                72.36          4.54        1.3060    5   0   1         6
                72.80         15.83        1.2991    4   1   2         6
                72.80          6.09        1.2991    5  -1   2         6
                73.00          3.04        1.2960    2   0   4         6
                73.26          9.84        1.2921    3   3   0         3
                74.83          3.18        1.2688    4   2   0         6
                77.06          4.82        1.2376    6  -2   1         6
                77.06          1.36        1.2376    4   2   1         6
                77.69          7.69        1.2291    3  -1   4         6
                77.69          3.75        1.2291    2   1   4         6
                79.04          2.43        1.2115    5   0   2         6
                79.48          1.41        1.2058    5   1   0         6
                80.78         10.50        1.1897    5  -2   3         6
                80.78          1.91        1.1897    3   2   3         6
                81.67          6.10        1.1790    5   1   1         6
                82.10          1.27        1.1739    6  -3   2         3
                83.62          3.45        1.1564    6  -2   2         6
                83.83          8.24        1.1540    4   1   3         6
                86.85          1.94        1.1215    3   1   4         6
                88.17          3.42        1.1081    5   1   2         6
                88.61          1.08        1.1037    4   3   0         6
                89.89          1.07        1.0913    5   0   3         6
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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.