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: T = 148.4 K, P = 0.0001 GPa
      Locality: Paradox Valley, Uravan District, Montrose County, Colorado, USA
      _database_code_amcsd 0020718

      CELL PARAMETERS:    4.7893   5.7775   3.5795   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     99.045
      Density (g/cm3):      7.167
      MAX. ABS. INTENSITY / VOLUME**2:      91.22581380    
      RIR:      4.145
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.14         12.83        3.6872    1   1   0         4
                29.35         15.13        3.0428    0   1   1         4
                30.96          6.12        2.8888    0   2   0         2
                31.19         48.50        2.8672    1   0   1         4
                34.94        100.00        2.5683    1   1   1         8
                36.32         82.80        2.4736    1   2   0         4
                37.56         11.05        2.3946    2   0   0         2
                40.79          6.56        2.2122    2   1   0         4
                44.52         11.63        2.0350    1   2   1         8
                48.37         69.92        1.8818    2   1   1         8
                49.44          6.32        1.8436    2   2   0         4
                51.03         28.86        1.7897    0   0   2         2
                51.12          8.97        1.7868    1   3   0         4
                54.07         33.58        1.6960    0   3   1         4
                56.12          8.96        1.6390    2   2   1         8
                57.21          1.72        1.6101    1   1   2         8
                57.66         15.55        1.5987    1   3   1         8
                60.13         11.25        1.5388    3   1   0         4
                60.89          1.34        1.5214    0   2   2         4
                61.82          1.28        1.5007    2   3   0         4
                63.84          1.25        1.4580    3   0   1         4
                64.24         27.89        1.4500    1   2   2         8
                64.52          3.01        1.4444    0   4   0         2
                65.06          4.30        1.4336    2   0   2         4
                66.09          8.64        1.4137    3   1   1         8
                66.97          7.66        1.3973    3   2   0         4
                67.29          2.68        1.3914    2   1   2         8
                67.70          3.18        1.3840    2   3   1         8
                72.64          2.96        1.3016    3   2   1         8
                73.79          3.09        1.2842    2   2   2         8
                75.13          4.73        1.2645    1   3   2         8
                77.12         12.36        1.2368    2   4   0         4
                80.16          3.27        1.1973    4   0   0         2
                82.23          2.34        1.1724    4   1   0         4
                82.71          7.88        1.1668    3   1   2         8
                83.09          3.12        1.1624    3   3   1         8
                83.50          2.05        1.1578    1   0   3         4
                85.55          6.34        1.1352    1   1   3         8
                86.61          2.65        1.1240    0   4   2         4
                86.68          1.24        1.1233    1   5   0         4
                88.85          6.74        1.1014    3   2   2         8
                89.03          4.47        1.0996    0   5   1         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.