Norbergite
      Gibbs G V, Ribbe P H
      American Mineralogist 54 (1969) 376-390
      The crystal structures of the humite minerals: I. Norbergite
      _database_code_amcsd 0000190

      CELL PARAMETERS:    4.7104  10.2718   8.7476   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    423.246
      Density (g/cm3):      3.176
      MAX. ABS. INTENSITY / VOLUME**2:      7.553209349    
      RIR:      0.774
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.27         17.31        5.1359    0   2   0         2
                20.05          6.17        4.4290    0   2   1         4
                20.30         18.03        4.3738    0   0   2         2
                20.75          5.64        4.2817    1   1   0         4
                21.43          6.39        4.1473    1   0   1         4
                25.66          1.87        3.4715    1   2   0         4
                26.77         19.10        3.3299    0   2   2         4
                27.65         22.15        3.2267    1   2   1         8
                29.19        100.00        3.0596    1   1   2         8
                32.32          7.05        2.7696    1   3   0         4
                32.94          4.01        2.7191    1   2   2         8
                33.95         70.15        2.6404    1   3   1         8
                35.40          1.68        2.5357    0   2   3         4
                36.23          5.10        2.4793    1   0   3         4
                36.47         11.30        2.4640    0   4   1         4
                37.31         32.06        2.4101    1   1   3         8
                38.47         28.04        2.3399    1   3   2         8
                39.24         12.44        2.2956    2   1   0         4
                39.99         36.52        2.2547    1   4   0         4
                40.40         68.08        2.2327    1   2   3         8
                40.63          2.50        2.2204    2   1   1         8
                40.75          4.29        2.2145    0   4   2         4
                41.28          3.13        2.1869    0   0   4         2
                44.58          6.55        2.0327    2   1   2         8
                45.15          1.69        2.0081    1   3   3         8
                46.64         12.55        1.9476    1   1   4         8
                46.82          1.82        1.9405    2   3   0         4
                47.16          2.26        1.9271    0   4   3         4
                47.27          1.62        1.9229    2   2   2         8
                49.24          2.67        1.8503    1   2   4         8
                49.51          6.98        1.8409    1   5   1         8
                51.52          1.17        1.7737    2   3   2         8
                52.74         30.40        1.7357    2   4   0         4
                52.94          2.87        1.7296    1   5   2         8
                53.07         69.05        1.7257    2   2   3         8
                53.38          3.43        1.7163    1   3   4         8
                53.53          1.23        1.7120    0   6   0         2
                53.85          8.80        1.7025    2   4   1         8
                55.49          4.20        1.6561    0   2   5         4
                56.85          1.96        1.6195    1   1   5         8
                57.01          1.60        1.6154    2   3   3         8
                57.09          5.39        1.6133    2   4   2         8
                57.51          4.39        1.6026    2   0   4         4
                57.84         11.04        1.5942    0   6   2         4
                58.27          2.48        1.5834    2   1   4         8
                58.31          1.43        1.5824    1   6   1         8
                58.33          6.06        1.5819    1   5   3         8
                58.83          1.37        1.5698    1   4   4         8
                60.59          4.71        1.5282    3   1   1         8
                60.76          1.16        1.5245    2   5   1         8
                62.25          1.91        1.4915    2   4   3         8
                62.79          1.38        1.4799    3   2   1         8
                62.83         14.99        1.4791    1   3   5         8
                62.96         38.90        1.4763    0   6   3         4
                63.61          3.11        1.4627    3   1   2         8
                63.77          2.19        1.4594    2   5   2         8
                63.85         24.62        1.4579    0   0   6         2
                64.44          4.98        1.4459    0   4   5         4
                65.39          1.88        1.4272    3   3   0         4
                65.75          1.03        1.4202    3   2   2         8
                66.36          6.22        1.4086    3   3   1         8
                66.77         10.10        1.4010    1   7   0         4
                67.74          1.72        1.3834    1   7   1         8
                67.79          1.34        1.3824    3   0   3         4
                68.48          2.86        1.3701    3   1   3         8
                68.64          1.66        1.3674    2   5   3         8
                69.25          3.25        1.3568    3   3   2         8
                69.76          4.39        1.3480    0   6   4         4
                70.27          6.38        1.3396    3   4   0         4
                70.55         19.38        1.3349    3   2   3         8
                71.21          3.94        1.3241    3   4   1         8
                73.95          4.38        1.2817    1   5   5         8
                74.01          1.01        1.2808    3   4   2         8
                76.97          1.26        1.2388    1   8   0         4
                77.46          1.37        1.2322    2   4   5         8
                77.47          1.12        1.2320    0   8   2         4
                77.57          2.32        1.2307    2   1   6         8
                78.06          3.53        1.2243    1   4   6         8
                79.97          2.16        1.1997    3   5   2         8
                80.60          1.25        1.1919    1   8   2         8
                81.61          1.90        1.1797    1   7   4         8
                81.79          5.68        1.1776    4   0   0         2
                81.94          1.21        1.1758    1   2   7         8
                83.21          2.46        1.1611    3   1   5         8
                83.55          1.20        1.1572    3   6   0         4
                84.47          1.92        1.1469    3   5   3         8
                84.61          2.29        1.1453    2   7   3         8
                85.16          1.68        1.1394    3   2   5         8
                85.19          2.32        1.1391    1   3   7         8
                86.29          2.57        1.1273    2   8   0         4
                87.12          1.28        1.1187    3   6   2         8
                87.18          1.47        1.1181    2   8   1         8
                87.35          7.60        1.1164    2   4   6         8
                88.39          4.36        1.1059    3   3   5         8
                89.65          1.17        1.0936    1   7   5         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.