Thortveitite
      Bianchi R, Pilati T, Diella V, Gamaccioli C M, Mannucci G
      American Mineralogist 73 (1988) 601-607
      A re-examination of thortveitite
      Sample 1 from Iveland
      _database_code_amcsd 0001160

      CELL PARAMETERS:    6.6500   8.6160   4.6860   90.000  102.200   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    262.427
      Density (g/cm3):      3.754
      MAX. ABS. INTENSITY / VOLUME**2:      27.91630996    
      RIR:      2.421
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.09         17.86        5.1889    1   1   0         4
                19.38         20.03        4.5802    0   0   1         2
                23.64          1.72        3.7632   -1   1   1         4
                27.44          1.39        3.2499    2   0   0         2
                28.08         39.58        3.1781    1   1   1         4
                28.44        100.00        3.1380    0   2   1         4
                30.17         55.02        2.9623   -2   0   1         2
                34.13         21.80        2.6270    1   3   0         4
                34.57         22.26        2.5945    2   2   0         4
                36.82          1.10        2.4409   -2   2   1         4
                37.15          6.63        2.4201    2   0   1         2
                38.00          2.17        2.3677   -1   3   1         4
                39.34          4.20        2.2901    0   0   2         2
                40.27          1.39        2.2393   -1   1   2         4
                41.04         22.64        2.1991    1   3   1         4
                41.94          3.45        2.1540    0   4   0         2
                42.86         10.11        2.1099    2   2   1         4
                43.05          2.57        2.1012    3   1   0         4
                43.25          9.98        2.0917   -2   0   2         2
                43.55         13.43        2.0780   -3   1   1         4
                44.82          4.09        2.0221    0   2   2         4
                46.59          1.94        1.9492    0   4   1         4
                48.37         17.93        1.8816   -2   2   2         4
                50.59          4.48        1.8043   -1   3   2         4
                51.43          1.09        1.7768    3   1   1         4
                52.53          4.77        1.7421   -2   4   1         4
                52.94          7.36        1.7296    3   3   0         4
                53.37          7.70        1.7166   -3   3   1         4
                53.61          8.25        1.7096    2   0   2         2
                55.14          6.90        1.6657    1   5   0         4
                55.43         19.55        1.6575    1   3   2         4
                56.64          8.37        1.6250    4   0   0         2
                57.87          5.55        1.5933   -1   5   1         4
                58.04          4.02        1.5891    2   2   2         4
                58.86          1.69        1.5690    0   4   2         4
                60.13          8.50        1.5388    1   5   1         4
                60.22          7.32        1.5367   -4   2   1         4
                60.30          5.10        1.5348    3   3   1         4
                60.66          1.82        1.5267    0   0   3         2
                60.94          2.46        1.5204    4   2   0         4
                61.40          2.73        1.5101   -2   0   3         2
                61.49          6.95        1.5080   -3   3   2         4
                62.73          3.71        1.4812   -4   0   2         2
                64.79          1.61        1.4390    0   2   3         4
                64.81          1.93        1.4386    4   0   1         2
                64.94          4.94        1.4360    0   6   0         2
                65.50          3.45        1.4251   -2   2   3         4
                66.24          2.13        1.4109    3   1   2         4
                66.72          2.83        1.4020    1   1   3         4
                67.75          4.08        1.3831   -1   5   2         4
                68.38          8.68        1.3719   -1   3   3         4
                68.80          3.79        1.3645    4   2   1         4
                69.73          3.63        1.3486    3   5   0         4
                70.10          5.29        1.3425   -3   5   1         4
                73.25          2.93        1.2922   -2   6   1         4
                73.96          1.78        1.2815    2   0   3         2
                77.23          1.24        1.2353   -3   5   2         4
                77.75          2.01        1.2283    2   2   3         4
                78.35          2.51        1.2205   -4   4   2         4
                79.21          1.01        1.2094    1   7   0         4
                79.73          3.05        1.2028   -4   2   3         4
                81.23          3.41        1.1843    5   3   0         4
                81.52          1.82        1.1808   -1   7   1         4
                81.98          2.36        1.1754    5   1   1         4
                83.29          1.84        1.1601   -1   1   4         4
                83.35          1.01        1.1595   -2   0   4         2
                84.64          1.17        1.1450    0   0   4         2
                88.32          1.41        1.1066    0   2   4         4
                88.93          3.55        1.1005    3   5   2         4
                89.37          4.01        1.0963    1   5   3         4
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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.