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 = 198.2 K, P = 0.0001 GPa
      Locality: Paradox Valley, Uravan District, Montrose County, Colorado, USA
      _database_code_amcsd 0020717

      CELL PARAMETERS:    4.7885   5.7782   3.5821   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     99.113
      Density (g/cm3):      7.162
      MAX. ABS. INTENSITY / VOLUME**2:      91.43114999    
      RIR:      4.157
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.14         13.41        3.6870    1   1   0         4
                29.34         15.14        3.0445    0   1   1         4
                30.95          6.15        2.8891    0   2   0         2
                31.18         47.10        2.8683    1   0   1         4
                34.92        100.00        2.5692    1   1   1         8
                36.32         82.84        2.4737    1   2   0         4
                37.57         11.31        2.3942    2   0   0         2
                40.80          6.10        2.2119    2   1   0         4
                44.51         11.65        2.0355    1   2   1         8
                48.36         70.45        1.8820    2   1   1         8
                49.44          6.28        1.8435    2   2   0         4
                50.99         28.83        1.7910    0   0   2         2
                51.12          8.72        1.7869    1   3   0         4
                54.06         33.43        1.6964    0   3   1         4
                56.11          8.35        1.6392    2   2   1         8
                57.18          1.81        1.6110    1   1   2         8
                57.65         15.64        1.5990    1   3   1         8
                60.14         10.84        1.5385    3   1   0         4
                60.85          1.35        1.5223    0   2   2         4
                61.82          1.20        1.5007    2   3   0         4
                63.84          1.09        1.4580    3   0   1         4
                64.20         27.95        1.4507    1   2   2         8
                64.51          3.00        1.4446    0   4   0         2
                65.03          4.40        1.4342    2   0   2         4
                66.09          8.94        1.4137    3   1   1         8
                66.98          7.94        1.3971    3   2   0         4
                67.26          2.49        1.3919    2   1   2         8
                67.69          3.25        1.3842    2   3   1         8
                72.64          2.91        1.3016    3   2   1         8
                73.76          3.07        1.2846    2   2   2         8
                75.10          4.60        1.2650    1   3   2         8
                77.11         12.47        1.2369    2   4   0         4
                80.18          3.43        1.1971    4   0   0         2
                82.24          2.21        1.1722    4   1   0         4
                82.69          7.59        1.1671    3   1   2         8
                83.08          3.25        1.1625    3   3   1         8
                83.43          1.99        1.1586    1   0   3         4
                85.48          6.34        1.1359    1   1   3         8
                86.57          2.65        1.1244    0   4   2         4
                86.67          1.22        1.1234    1   5   0         4
                88.82          6.99        1.1016    3   2   2         8
                89.01          4.48        1.0998    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.