Ussingite
      Rossi G, Tazzoli V, Ungaretti L
      American Mineralogist 59 (1974) 335-340
      The crystal structure of ussingite
      Locality: Lovozero alkali massif, Russia
      _database_code_amcsd 0000399

      CELL PARAMETERS:    7.2560   7.6860   8.6830   90.750   99.750  122.480
      SPACE GROUP: P-1       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    399.436
      Density (g/cm3):      2.512
      MAX. ABS. INTENSITY / VOLUME**2:      3.850400323    
      RIR:      0.499
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                10.42          1.25        8.4903    0   0   1         2
                13.62         54.13        6.5018   -1   1   0         2
                13.77         36.00        6.4328    0   1   0         2
                16.21          1.08        5.4672    0  -1   1         2
                16.24          1.59        5.4592   -1   0   1         2
                18.00         29.28        4.9282    1  -1   1         2
                18.32         24.22        4.8439    0   1   1         2
                20.93         50.59        4.2452    0   0   2         2
                23.01         19.37        3.8650   -1   0   2         2
                23.15         46.06        3.8424   -1   2   0         2
                23.62         49.07        3.7665    0  -1   2         2
                23.85         38.36        3.7306   -1   1   2         2
                25.02         48.92        3.5586   -2   1   0         2
                25.27         25.25        3.5246    1   1   0         2
                25.30         12.95        3.5208    1  -2   1         2
                25.34          7.57        3.5144   -2   1   1         2
                25.44         16.39        3.5016   -1  -1   1         2
                25.59         33.59        3.4807   -1   2   1         2
                26.20         18.42        3.4013    1  -1   2         2
                26.57         22.77        3.3554    0   1   2         2
                27.44         10.45        3.2509   -2   2   0         2
                27.74          6.18        3.2164    0   2   0         2
                28.20          2.44        3.1645    1   0   2         2
                28.39         23.77        3.1435   -2   2   1         2
                28.42         29.50        3.1408    0  -2   1         2
                28.89         25.30        3.0903    2  -1   1         2
                29.24         15.73        3.0545    1   1   1         2
                29.68         24.37        3.0101   -1  -1   2         2
                29.73         17.31        3.0055   -2   1   2         2
                29.85        100.00        2.9928    2   0   0         2
                30.42          8.79        2.9388    2  -2   1         2
                30.94          7.35        2.8904    0   2   1         2
                31.16          1.67        2.8706    1  -2   2         2
                31.65          3.62        2.8274   -1   2   2         2
                32.76         53.54        2.7336    0  -2   2         2
                32.81          1.17        2.7296   -2   0   2         2
                32.94          3.11        2.7189    0  -1   3         2
                32.97         39.80        2.7164   -2   2   2         2
                33.23          8.81        2.6962   -1   1   3         2
                35.71         10.89        2.5141    2  -1   2         2
                35.86         25.04        2.5043    1  -1   3         2
                36.11         14.77        2.4875    1   1   2         2
                36.24         14.66        2.4787    0   1   3         2
                36.86         12.02        2.4384   -2   1   3         2
                36.90          3.75        2.4362    1  -3   1         2
                37.04         11.11        2.4270   -2   3   1         2
                37.12          2.06        2.4219    0   2   2         2
                37.70          3.92        2.3858   -3   2   1         2
                37.90          1.36        2.3739    1   0   3         2
                37.95          5.39        2.3709   -1  -2   1         2
                38.34          3.38        2.3478    1   2   0         2
                38.78          1.75        2.3219   -2  -1   1         2
                39.25         10.76        2.2955    1  -2   3         2
                39.85          9.14        2.2623   -1   2   3         2
                40.08          4.50        2.2497   -2   2   3         2
                40.34          8.06        2.2358    2   0   2         2
                40.82          8.24        2.2108    1  -3   2         2
                41.24          9.18        2.1891   -2   3   2         2
                42.09          2.30        2.1469   -1   0   4         2
                42.14          2.53        2.1443    0   3   0         2
                42.59          1.95        2.1226    0   0   4         2
                42.81          1.40        2.1125    3  -1   1         2
                43.15          4.28        2.0963    2   1   1         2
                43.18          1.49        2.0952    0  -1   4         2
                44.16         16.46        2.0510    3  -3   1         2
                44.42          1.45        2.0396   -3   0   1         2
                44.51          2.92        2.0355    2  -2   3         2
                44.87         22.20        2.0198    0   3   1         2
                45.25          2.29        2.0040    0   2   3         2
                45.46          8.84        1.9952   -1  -1   4         2
                45.67          3.63        1.9865   -2   1   4         2
                45.76          2.17        1.9827   -2  -1   3         2
                45.79          3.60        1.9817   -3   1   3         2
                45.88          1.04        1.9779   -3   2   3         2
                46.04          1.03        1.9714   -3   0   2         2
                46.31          3.29        1.9604    1  -1   4         2
                46.71          6.07        1.9446    0   1   4         2
                47.02         13.05        1.9325   -2   0   4         2
                47.32          2.12        1.9212   -2   4   0         2
                48.40          2.38        1.8805    1   0   4         2
                48.42          5.28        1.8800    2  -4   1         2
                48.69          1.91        1.8701    1  -2   4         2
                48.76          1.21        1.8677   -2   4   1         2
                49.20          3.64        1.8519    2  -3   3         2
                49.37          3.38        1.8461   -1   2   4         2
                50.03          2.16        1.8231   -1   4   0         2
                50.05          1.70        1.8224    0  -3   3         2
                50.09          1.51        1.8211   -1   3   3         2
                50.37          1.89        1.8117    1  -4   1         2
                50.48          4.54        1.8078   -4   2   1         2
                50.86          1.26        1.7954   -2  -2   1         2
                51.45          1.32        1.7760    3  -4   1         2
                51.88          1.21        1.7623    2   2   0         2
                51.97          4.64        1.7595   -4   3   0         2
                52.04         11.37        1.7572   -4   2   2         2
                52.13          1.86        1.7545   -1   4   1         2
                52.25         15.11        1.7508   -2  -2   2         2
                52.59          1.02        1.7404   -2   4   2         2
                52.63          2.04        1.7390    1   3   0         2
                53.10          4.24        1.7247    1  -4   2         2
                53.19          1.60        1.7221   -3   2   4         2
                53.39          4.70        1.7161   -3   4   2         2
                53.87          3.78        1.7020   -3  -1   1         2
                54.11          7.78        1.6950    0  -1   5         2
                54.46         10.89        1.6849   -1   1   5         2
                54.76          1.16        1.6763   -4   1   2         2
                54.78          8.40        1.6759    3   0   2         2
                54.86         10.21        1.6735   -4   1   0         2
                55.16          1.67        1.6652    3   1   0         2
                55.98          1.40        1.6427    3  -3   3         2
                56.36          4.20        1.6324    3  -1   3         2
                56.57         10.33        1.6270   -4   4   1         2
                56.80          1.73        1.6209    2   1   3         2
                56.93          7.54        1.6175    0  -4   1         2
                57.04          1.20        1.6146    0   3   3         2
                57.11          1.22        1.6128    0  -3   4         2
                57.53          2.14        1.6021   -1  -3   3         2
                57.57          2.99        1.6009    2  -4   3         2
                57.59          1.52        1.6006   -4   3   3         2
                58.00          1.53        1.5902    1  -4   3         2
                58.17          1.25        1.5858    0  -2   5         2
                58.30          4.68        1.5826    4  -1   1         2
                58.32          1.14        1.5823    2   0   4         2
                58.47          5.49        1.5784   -2   4   3         2
                58.57          2.24        1.5761   -3   4   3         2
                58.66          2.19        1.5737    3   1   1         2
                58.76          1.25        1.5714   -2   2   5         2
                58.92          1.45        1.5676    4  -4   1         2
                59.15          2.27        1.5620    1  -2   5         2
                59.89          3.19        1.5445   -1   2   5         2
                60.66          1.74        1.5267   -3   5   0         2
                60.86          1.55        1.5222   -2   5   0         2
                61.61          1.20        1.5054   -1  -2   5         2
                61.73          1.20        1.5028   -4   2   4         2
                61.87          1.90        1.4996    3  -5   1         2
                62.01          1.53        1.4965   -3   2   5         2
                62.02          1.63        1.4964    4   0   0         2
                62.43          1.84        1.4876   -2   5   1         2
                62.75          3.52        1.4808   -1   4   3         2
                62.78          1.28        1.4800    0  -4   3         2
                63.15          3.78        1.4722    3  -2   4         2
                63.29          3.14        1.4694    4  -4   2         2
                63.48          2.09        1.4654   -4   1   4         2
                63.75          1.71        1.4599    4  -1   2         2
                64.03          2.50        1.4541    1   2   4         2
                64.41          6.50        1.4465   -1   0   6         2
                64.46          1.33        1.4455    3  -3   4         2
                64.48          4.09        1.4452    0   4   2         2
                64.52          4.40        1.4443    1  -3   5         2
                64.74          1.34        1.4399   -4   5   0         2
                64.75          4.34        1.4397    1  -4   4         2
                64.82          1.45        1.4384   -2  -3   1         2
                65.03          1.08        1.4342   -4   5   1         2
                65.46          3.81        1.4259   -2   3   5         2
                65.50          1.29        1.4250    3  -1   4         2
                65.57          2.60        1.4238   -3   4   4         2
                65.74          1.46        1.4205    0  -3   5         2
                65.97          1.41        1.4160    2   1   4         2
                66.02          2.14        1.4151    0   0   6         2
                66.06          1.05        1.4143   -2   5   2         2
                66.59          1.14        1.4043   -5   4   1         2
                66.98          1.56        1.3971   -2   0   6         2
                67.22          2.35        1.3927   -1  -4   1         2
                67.98          1.96        1.3790   -5   4   2         2
                68.30          8.01        1.3733    5  -3   1         2
                68.33          1.03        1.3728   -1  -4   2         2
                68.79          5.81        1.3648   -4   0   4         2
                69.06          2.57        1.3600   -2  -2   5         2
                69.29          5.59        1.3561    2   3   1         2
                69.30          2.33        1.3559   -4   2   5         2
                69.32          1.57        1.3556    3  -4   4         2
                70.26          5.27        1.3397   -5   1   1         2
                70.41          4.67        1.3373    3  -5   3         2
                70.52          5.83        1.3354   -4  -1   1         2
                70.70          2.08        1.3325   -1   4   4         2
                70.82          1.67        1.3305   -4  -1   2         2
                70.89          1.52        1.3294   -2  -1   6         2
                70.91          1.30        1.3291    3   2   1         2
                71.01          4.08        1.3273   -1  -3   5         2
                71.11          1.96        1.3258   -3   1   6         2
                71.24          4.00        1.3237    1  -5   3         2
                71.43          1.21        1.3206   -1  -4   3         2
                71.47          3.07        1.3199   -4   3   5         2
                71.60          4.64        1.3179   -2   5   3         2
                71.67          6.56        1.3168    1   0   6         2
                71.70          2.18        1.3163   -4   5   3         2
                72.22          1.46        1.3081    4   1   0         2
                72.41          2.11        1.3052   -5   5   1         2
                72.98          1.77        1.2963    0  -5   1         2
                73.46          1.85        1.2891    3  -2   5         2
                73.51          1.48        1.2883   -3   0   6         2
                73.63          1.11        1.2866    0   5   0         2
                73.63          1.25        1.2864   -5   2   4         2
                73.68          1.27        1.2857   -3  -2   4         2
                74.35          1.52        1.2758    3  -3   5         2
                74.41          2.13        1.2750    1   2   5         2
                75.65          2.06        1.2571    4  -2   4         2
                75.67          1.07        1.2569    0   3   5         2
                76.83          1.88        1.2407    2  -1   6         2
                76.93          1.37        1.2393    0   2   6         2
                77.08          2.71        1.2373    1  -5   4         2
                77.47          1.15        1.2320    4  -4   4         2
                77.57          1.77        1.2307    0  -5   3         2
                77.66          2.97        1.2295   -5   5   3         2
                77.85          2.09        1.2270   -4   5   4         2
                78.29          2.61        1.2212   -1  -1   7         2
                78.64          2.45        1.2166   -2   1   7         2
                79.08          1.74        1.2110    0   4   4         2
                80.05          1.39        1.1987    5  -3   3         2
                80.25          1.20        1.1963   -5   3   5         2
                80.66          1.43        1.1912   -2  -4   1         2
                80.97          2.25        1.1874    5  -4   3         2
                81.01          1.16        1.1870    2   0   6         2
                82.59          2.34        1.1682    1   4   3         2
                85.08          1.12        1.1402   -4  -2   3         2
                85.20          1.18        1.1389    5  -5   3         2
                86.69          1.32        1.1232   -3  -3   4         2
                87.03          1.23        1.1196    0   5   3         2
                89.60          2.01        1.0940   -3  -1   7         2
                89.61          3.46        1.0940    5   0   2         2
                89.81          1.78        1.0921   -4   1   7         2
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.