Ferroselite
      Lavina B, Downs R T, Sinogeikin S
      Crystals 8 (2018) 289; doi:10.3390/cryst807
      The structure of ferroselite, FeSe2, at pressures up to 46 GPa
      and temperatures down to 50 K: A single-crystal micro-diffraction analysis
      Note: P = 8.1 GPa
      Locality: Paradox Valley, Uravan District, Montrose County, Colorado, USA
      _database_code_amcsd 0020712

      CELL PARAMETERS:    4.6980   5.6670   3.5088   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     93.417
      Density (g/cm3):      7.599
      MAX. ABS. INTENSITY / VOLUME**2:      95.90511248    
      RIR:      4.110
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.61         12.55        3.6168    1   1   0         4
                29.95         14.93        2.9833    0   1   1         4
                31.58          6.07        2.8335    0   2   0         2
                31.83         50.16        2.8113    1   0   1         4
                35.65        100.00        2.5184    1   1   1         8
                37.05         82.42        2.4264    1   2   0         4
                38.32         10.66        2.3490    2   0   0         2
                41.62          6.96        2.1700    2   1   0         4
                45.45         11.61        1.9957    1   2   1         8
                49.38         68.55        1.8456    2   1   1         8
                50.47          6.41        1.8084    2   2   0         4
                52.13         28.45        1.7544    0   0   2         2
                52.19          9.15        1.7526    1   3   0         4
                55.23         33.31        1.6633    0   3   1         4
                57.32          9.29        1.6075    2   2   1         8
                58.47          1.67        1.5785    1   1   2         8
                58.90         14.90        1.5679    1   3   1         8
                61.43         11.39        1.5094    3   1   0         4
                62.24          1.31        1.4916    0   2   2         4
                63.16          1.30        1.4721    2   3   0         4
                65.24          1.32        1.4300    3   0   1         4
                65.67         26.88        1.4217    1   2   2         8
                65.93          2.86        1.4167    0   4   0         2
                66.52          3.98        1.4056    2   0   2         4
                67.56          8.07        1.3866    3   1   1         8
                68.45          7.13        1.3706    3   2   0         4
                68.81          2.75        1.3643    2   1   2         8
                69.21          2.94        1.3574    2   3   1         8
                74.29          3.00        1.2767    3   2   1         8
                75.50          3.12        1.2592    2   2   2         8
                76.89          4.79        1.2399    1   3   2         8
                78.91         11.89        1.2132    2   4   0         4
                82.05          3.04        1.1745    4   0   0         2
                84.18          2.36        1.1501    4   1   0         4
                84.71          7.97        1.1442    3   1   2         8
                85.09          2.85        1.1402    3   3   1         8
                85.57          2.08        1.1350    1   0   3         4
                87.69          6.10        1.1129    1   1   3         8
                88.76          2.48        1.1022    0   4   2         4
                88.81          1.26        1.1018    1   5   0         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.