Herderite
      Pavlov P V, Belov N V
      Soviet Physics Crystallography 4 (1959) 300-314
      The structures of herderite, datolite and gadolinite determined by direct
      methods
      Locality: not given, but the crystal was natural
      _database_code_amcsd 0015537

      CELL PARAMETERS:    9.8000   7.6800   4.8000   90.000   90.100   90.000
      SPACE GROUP: P2_1/a    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    361.267
      Density (g/cm3):      2.998
      MAX. ABS. INTENSITY / VOLUME**2:      5.987632245    
      RIR:      0.650
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                14.65         27.43        6.0449    1   1   0         4
                18.10          2.10        4.9000    2   0   0         2
                18.48         17.60        4.8000    0   0   1         2
                21.51          4.41        4.1308    2   1   0         4
                21.84          2.26        4.0704    0   1   1         4
                23.16         20.27        3.8400    0   2   0         2
                23.66         15.39        3.7610   -1   1   1         4
                23.68         14.94        3.7571    1   1   1         4
                25.96         16.15        3.4319   -2   0   1         2
                26.01         53.87        3.4259    2   0   1         2
                28.49        100.00        3.1333   -2   1   1         4
                28.53         74.53        3.1287    2   1   1         4
                29.55         28.75        3.0225    2   2   0         4
                29.80         62.78        2.9985    0   2   1         4
                31.18         42.33        2.8682   -1   2   1         4
                31.20         42.83        2.8664    1   2   1         4
                35.07          1.42        2.5589   -2   2   1         4
                35.10         13.36        2.5564    2   2   1         4
                35.20         12.46        2.5495   -3   1   1         4
                35.25         25.82        2.5458    3   1   1         4
                36.10          1.21        2.4881    3   2   0         4
                36.27          4.93        2.4769    1   3   0         4
                36.68         10.71        2.4500    4   0   0         2
                37.47          2.64        2.4000    0   0   2         2
                38.57         21.51        2.3341    4   1   0         4
                39.33          2.06        2.2907    0   1   2         4
                39.72         23.84        2.2690    2   3   0         4
                39.91         25.18        2.2588    0   3   1         4
                40.42         18.72        2.2314   -1   1   2         4
                40.45          1.93        2.2298    1   1   2         4
                40.83         30.03        2.2102   -3   2   1         4
                40.87         29.62        2.2078    3   2   1         4
                41.00          1.41        2.2015   -1   3   1         4
                41.01          6.04        2.2007    1   3   1         4
                41.35         12.37        2.1837   -4   0   1         2
                41.41         15.30        2.1806    4   0   1         2
                41.88          7.54        2.1568   -2   0   2         2
                41.95          2.28        2.1539    2   0   2         2
                43.06          7.05        2.1005   -4   1   1         4
                44.13          6.12        2.0520   -2   3   1         4
                44.52          5.72        2.0352    0   2   2         4
                44.99          5.90        2.0150    3   3   0         4
                45.51         15.39        1.9933   -1   2   2         4
                45.53         17.47        1.9921    1   2   2         4
                47.35          8.50        1.9200    0   4   0         2
                47.90          1.95        1.8991    5   1   0         4
                47.92          2.26        1.8982   -4   2   1         4
                48.30          1.26        1.8842    1   4   0         4
                48.40          1.05        1.8805   -2   2   2         4
                48.46          3.04        1.8785    2   2   2         4
                48.50         14.24        1.8770   -3   1   2         4
                48.58         15.62        1.8741    3   1   2         4
                49.01          1.00        1.8586   -3   3   1         4
                49.05          2.90        1.8572    3   3   1         4
                51.09         13.73        1.7877    2   4   0         4
                51.25         17.66        1.7827    0   4   1         4
                51.64          8.34        1.7700    4   3   0         4
                51.74          2.93        1.7670   -5   1   1         4
                52.41         11.38        1.7457    5   2   0         4
                52.97          1.24        1.7285   -3   2   2         4
                53.13          5.00        1.7240   -1   3   2         4
                53.39          4.97        1.7160   -4   0   2         2
                54.82          4.62        1.6747   -4   1   2         4
                54.92         18.13        1.6719    4   1   2         4
                55.29         12.24        1.6614   -4   3   1         4
                55.34          9.84        1.6600    4   3   1         4
                55.73          8.83        1.6495   -2   3   2         4
                55.78         17.60        1.6481    2   3   2         4
                56.03          3.99        1.6414   -5   2   1         4
                56.33          3.81        1.6333    6   0   0         2
                57.61          2.35        1.6000    0   0   3         2
                58.95          5.74        1.5667   -4   2   2         4
                59.05          2.21        1.5644    3   4   1         4
                59.39          1.02        1.5562    5   3   0         4
                59.78          6.28        1.5471   -6   0   1         2
                59.81          1.60        1.5463    1   1   3         4
                59.85          5.07        1.5454    6   0   1         2
                59.91          1.07        1.5440   -3   3   2         4
                60.94          4.54        1.5202    2   0   3         2
                61.72          5.91        1.5030    6   2   0         4
                62.19          2.63        1.4927   -2   1   3         4
                62.26          1.92        1.4913    2   1   3         4
                62.41          2.24        1.4880    5   1   2         4
                62.68          1.60        1.4823   -1   4   2         4
                62.74          1.29        1.4810   -5   3   1         4
                63.71          4.47        1.4608   -1   2   3         4
                63.74          5.17        1.4601    1   2   3         4
                64.39          3.99        1.4470   -1   5   1         4
                64.40          1.21        1.4468    1   5   1         4
                64.68          1.41        1.4410    4   4   1         4
                64.99          2.11        1.4350   -6   2   1         4
                65.04          2.16        1.4341   -2   4   2         4
                65.08          3.01        1.4332    2   4   2         4
                66.11          4.44        1.4133   -3   1   3         4
                66.14          1.03        1.4128   -5   2   2         4
                66.21          2.43        1.4115    3   1   3         4
                66.25          1.08        1.4107    5   2   2         4
                68.88          2.43        1.3632   -3   4   2         4
                69.25          3.15        1.3568    0   3   3         4
                69.95          1.85        1.3450    3   2   3         4
                70.52          2.79        1.3354   -3   5   1         4
                70.55          4.25        1.3349    3   5   1         4
                71.19          2.22        1.3245   -7   1   1         4
                71.42          1.27        1.3207   -4   1   3         4
                71.55          2.64        1.3187    4   1   3         4
                71.57          1.03        1.3184    5   4   1         4
                72.22          1.37        1.3081   -2   3   3         4
                74.07          3.72        1.2800    0   6   0         2
                74.42          2.36        1.2748   -6   2   2         4
                74.80          2.51        1.2692    1   6   0         4
                74.81          1.02        1.2691   -7   2   1         4
                74.89          3.86        1.2680    7   2   1         4
                75.04          2.74        1.2658   -4   2   3         4
                75.70          1.77        1.2563   -4   5   1         4
                75.75          2.39        1.2557    4   5   1         4
                75.89          1.15        1.2537   -3   3   3         4
                75.99          1.13        1.2524    3   3   3         4
                76.07          2.23        1.2512   -2   5   2         4
                76.12          3.53        1.2506    2   5   2         4
                76.58          9.69        1.2441    6   4   0         4
                77.69          5.10        1.2292    0   4   3         4
                78.00          3.32        1.2250    8   0   0         2
                78.03          1.48        1.2246   -5   1   3         4
                78.18          1.34        1.2226    5   1   3         4
                78.43          1.43        1.2194    1   4   3         4
                79.18          3.19        1.2097    8   1   0         4
                79.69          3.20        1.2032   -3   5   2         4
                79.75          4.32        1.2024    3   5   2         4
                79.95          2.26        1.2000    0   0   4         2
                80.02          1.69        1.1990    2   6   1         4
                80.31          1.26        1.1955   -7   1   2         4
                80.79          1.09        1.1895    7   3   1         4
                80.95          1.22        1.1877   -4   3   3         4
                81.07          3.13        1.1862    4   3   3         4
                81.12          1.26        1.1856    0   1   4         4
                81.55          2.20        1.1804   -5   2   3         4
                81.70          2.51        1.1786    5   2   3         4
                81.86          1.65        1.1768    1   1   4         4
                83.61          1.72        1.1565    3   6   1         4
                83.81          3.64        1.1542   -7   2   2         4
                83.95          3.03        1.1526    7   2   2         4
                84.74          1.74        1.1440   -6   0   3         2
                84.92          2.01        1.1420    6   0   3         2
                85.62          1.22        1.1344   -8   2   1         4
                86.08          1.47        1.1296    6   1   3         4
                86.79          2.78        1.1221   -1   6   2         4
                87.50          1.02        1.1148    5   3   3         4
                88.47          4.93        1.1051   -6   4   2         4
                88.90          2.34        1.1009    1   5   3         4
                89.07          3.93        1.0992   -4   4   3         4
                89.36          1.20        1.0964   -6   2   3         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.