Purpurite
      Bjoerling C, Westgren A
      Geologiska Foreningens i Stockholm Forhandlingar 60 (1938) 67-72
      Minerals of the Varutrask pegmatite. IX. X-ray studies on triphylite,
      varulite, and their oxidation products
      _cod_database_code 1011230
      _database_code_amcsd 0018097

      CELL PARAMETERS:    4.7600   9.6800   5.8190   90.000   90.000   90.000
      SPACE GROUP: Pbnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    268.121
      Density (g/cm3):      3.721
      MAX. ABS. INTENSITY / VOLUME**2:      17.87829189    
      RIR:      1.564
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.33         32.46        4.8400    0   2   0         2
                20.80         31.01        4.2715    1   1   0         4
                23.91          7.61        3.7211    0   2   1         4
                24.16          4.13        3.6843    1   0   1         4
                25.87         85.61        3.4434    1   1   1         8
                26.26         14.01        3.3938    1   2   0         4
                30.49          4.49        2.9316    1   2   1         8
                30.73         63.49        2.9095    0   0   2         2
                33.55          6.78        2.6709    1   3   0         4
                37.03        100.00        2.4274    1   3   1         8
                37.40         23.67        2.4047    1   1   2         8
                38.97          2.13        2.3112    2   1   0         4
                40.37         18.49        2.2345    0   4   1         4
                40.85          9.52        2.2089    1   2   2         8
                41.88         17.29        2.1572    1   4   0         4
                42.07          3.31        2.1480    2   1   1         8
                42.32         19.54        2.1358    2   2   0         4
                44.81          4.71        2.0227    1   4   1         8
                46.14         18.05        1.9675    1   3   2         8
                48.96          5.71        1.8605    0   4   2         4
                49.48         13.17        1.8422    2   0   2         4
                50.43         16.57        1.8097    2   1   2         8
                51.76          7.85        1.7661    1   1   3         8
                53.20         33.20        1.7217    2   2   2         8
                53.47          5.69        1.7138    1   5   1         8
                54.04          3.26        1.6969    2   4   0         4
                54.49          2.31        1.6840    1   2   3         8
                56.49         10.23        1.6290    2   4   1         8
                57.09          1.88        1.6133    0   6   0         2
                58.84         21.74        1.5695    1   3   3         8
                59.45          7.92        1.5547    0   6   1         4
                60.66          1.42        1.5266    1   5   2         8
                61.24          7.91        1.5135    0   4   3         4
                61.31          6.81        1.5120    3   1   1         8
                61.50          3.36        1.5077    3   2   0         4
                61.77          1.45        1.5019    2   5   0         4
                62.51          1.70        1.4858    2   1   3         8
                63.77          4.37        1.4595    3   2   1         8
                64.00         13.13        1.4547    0   0   4         2
                64.03          5.51        1.4542    2   5   1         8
                65.56          2.94        1.4238    3   3   0         4
                66.24         11.09        1.4109    0   6   2         4
                67.19          1.28        1.3932    0   2   4         4
                67.75          4.25        1.3830    3   3   1         8
                68.09          1.96        1.3771    1   1   4         8
                70.32          9.12        1.3387    3   2   2         8
                70.52          2.28        1.3354    2   6   0         4
                70.98          4.69        1.3280    1   7   0         4
                71.04          1.45        1.3269    3   4   0         4
                71.67          2.64        1.3168    1   5   3         8
                72.64          5.40        1.3016    2   6   1         8
                73.15          3.73        1.2937    3   4   1         8
                74.23          1.41        1.2775    1   3   4         8
                74.26          2.28        1.2771    2   4   3         8
                76.86          3.25        1.2404    0   6   3         4
                77.84          1.66        1.2272    3   5   0         4
                78.51          4.60        1.2183    3   1   3         8
                79.31          5.02        1.2081    1   7   2         8
                79.46          1.57        1.2061    1   4   4         8
                79.76          4.10        1.2023    2   2   4         8
                79.89          1.58        1.2008    3   5   1         8
                80.29          1.40        1.1957    2   7   0         4
                80.72          1.58        1.1904    3   2   3         8
                80.96          2.04        1.1875    2   5   3         8
                81.49          3.30        1.1811    4   1   0         4
                84.39          2.01        1.1478    3   3   3         8
                86.72          1.91        1.1229    1   1   5         8
                88.99          2.87        1.0999    2   6   3         8
                89.49          2.47        1.0952    3   4   3         8
                89.57          1.14        1.0944    4   1   2         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.