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 = 32 GPa
      Locality: Paradox Valley, Uravan District, Montrose County, Colorado, USA
      _database_code_amcsd 0020715

      CELL PARAMETERS:    4.4880   5.4710   3.3734   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     82.830
      Density (g/cm3):      8.570
      MAX. ABS. INTENSITY / VOLUME**2:      111.0251219    
      RIR:      4.218
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.67         11.99        3.4699    1   1   0         4
                31.15         14.44        2.8714    0   1   1         4
                32.74          5.47        2.7355    0   2   0         2
                33.22         50.60        2.6966    1   0   1         4
                37.17        100.00        2.4187    1   1   1         8
                38.54         81.62        2.3358    1   2   0         4
                40.19         10.16        2.2440    2   0   0         2
                43.59          7.30        2.0761    2   1   0         4
                47.34         11.11        1.9204    1   2   1         8
                51.70         65.42        1.7681    2   1   1         8
                52.76          6.59        1.7349    2   2   0         4
                54.30          9.36        1.6895    1   3   0         4
                54.39         28.10        1.6867    0   0   2         2
                57.44         34.08        1.6043    0   3   1         4
                59.96          9.71        1.5428    2   2   1         8
                61.09          1.53        1.5170    1   1   2         8
                61.37         14.05        1.5106    1   3   1         8
                64.58         11.22        1.4430    3   1   0         4
                64.95          1.14        1.4357    0   2   2         4
                66.01          1.30        1.4152    2   3   0         4
                68.62          2.90        1.3678    0   4   0         2
                68.63          1.49        1.3676    3   0   1         4
                68.63         26.83        1.3674    1   2   2         8
                69.75          3.93        1.3483    2   0   2         4
                71.05          7.77        1.3267    3   1   1         8
                71.94          6.78        1.3125    3   2   0         4
                72.16          2.96        1.3091    2   1   2         8
                72.42          3.17        1.3050    2   3   1         8
                78.14          3.12        1.2232    3   2   1         8
                79.20          3.29        1.2094    2   2   2         8
                80.46          5.02        1.1937    1   3   2         8
                82.61         12.01        1.1679    2   4   0         4
                86.80          2.91        1.1220    4   0   0         2
                89.08          2.59        1.0991    4   1   0         4
                89.35          8.39        1.0965    3   1   2         8
                89.60          2.73        1.0941    3   3   1         8
                89.95          2.22        1.0908    1   0   3         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.