Thortveitite
      Bianchi R, Pilati T, Diella V, Gamaccioli C M, Mannucci G
      American Mineralogist 73 (1988) 601-607
      A re-examination of thortveitite
      Sample 4 from Malagasy Republic
      _database_code_amcsd 0001163

      CELL PARAMETERS:    6.5270   8.5070   4.6910   90.000  102.780   90.000
      SPACE GROUP: C2/m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    254.016
      Density (g/cm3):      3.465
      MAX. ABS. INTENSITY / VOLUME**2:      21.23551149    
      RIR:      1.995
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                17.40         16.15        5.0965    1   1   0         4
                19.40          9.44        4.5748    0   0   1         2
                28.43         46.54        3.1392    1   1   1         4
                28.66        100.00        3.1151    0   2   1         4
                30.46         51.73        2.9346   -2   0   1         2
                34.63         16.92        2.5903    1   3   0         4
                35.22         14.87        2.5483    2   2   0         4
                37.84          3.38        2.3776    2   0   1         2
                39.39          2.02        2.2874    0   0   2         2
                41.58         20.34        2.1718    1   3   1         4
                42.51          3.38        2.1267    0   4   0         2
                43.31          8.75        2.0893   -2   0   2         2
                43.61          6.82        2.0754    2   2   1         4
                43.98          2.36        2.0587    3   1   0         4
                44.20         17.11        2.0492   -3   1   1         4
                45.00          1.92        2.0146    0   2   2         4
                46.30          1.18        1.9611    1   1   2         4
                47.12          4.73        1.9285    0   4   1         4
                48.55         17.01        1.8753   -2   2   2         4
                50.82          2.81        1.7967   -1   3   2         4
                52.51          2.09        1.7426    3   1   1         4
                53.19          4.41        1.7221   -2   4   1         4
                53.97          6.34        1.6988    3   3   0         4
                54.16          6.02        1.6935   -3   3   1         4
                54.32          7.47        1.6888    2   0   2         2
                55.94          4.68        1.6437    1   5   0         4
                55.98         22.31        1.6428    1   3   2         4
                57.95          8.19        1.5913    4   0   0         2
                58.58          3.33        1.5758   -1   5   1         4
                58.83          2.82        1.5696    2   2   2         4
                59.33          1.34        1.5575    0   4   2         4
                60.73          1.12        1.5249    0   0   3         2
                60.97          7.65        1.5195    1   5   1         4
                61.29          6.29        1.5124   -4   2   1         4
                61.32          2.08        1.5117   -2   0   3         2
                61.50          4.18        1.5078    3   3   1         4
                62.01          7.71        1.4966   -3   3   2         4
                62.30          1.97        1.4904   -2   4   2         4
                62.30          1.26        1.4904    4   2   0         4
                63.39          2.95        1.4673   -4   0   2         2
                65.53          3.28        1.4244   -2   2   3         4
                65.88          6.75        1.4178    0   6   0         2
                66.32          1.21        1.4094    4   0   1         2
                67.11          3.48        1.3947    1   1   3         4
                67.42          2.08        1.3891    3   1   2         4
                68.35          2.93        1.3725   -1   5   2         4
                68.54          9.14        1.3691   -1   3   3         4
                70.37          3.59        1.3378    4   2   1         4
                71.01          2.57        1.3274    3   5   0         4
                71.17          5.03        1.3248   -3   5   1         4
                74.29          3.49        1.2766   -2   6   1         4
                74.74          1.46        1.2701    2   0   3         2
                78.61          1.80        1.2170    2   2   3         4
                79.33          2.70        1.2077   -4   4   2         4
                80.18          2.69        1.1970   -4   2   3         4
                82.70          1.28        1.1669   -1   7   1         4
                83.18          3.15        1.1614    5   3   0         4
                83.24          2.20        1.1607   -1   1   4         4
                84.08          2.71        1.1512    5   1   1         4
                88.53          1.18        1.1045    0   2   4         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.