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 = 197 K, P = 3.68 GPa
      Locality: Paradox Valley, Uravan District, Montrose County, Colorado, USA
      _database_code_amcsd 0020720

      CELL PARAMETERS:    4.7510   5.7230   3.5501   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     96.527
      Density (g/cm3):      7.354
      MAX. ABS. INTENSITY / VOLUME**2:      92.69783433    
      RIR:      4.105
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.35         12.69        3.6555    1   1   0         4
                29.61         15.68        3.0168    0   1   1         4
                31.26          6.60        2.8615    0   2   0         2
                31.46         49.49        2.8439    1   0   1         4
                35.24        100.00        2.5468    1   1   1         8
                36.66         83.50        2.4512    1   2   0         4
                37.87         11.09        2.3755    2   0   0         2
                41.14          6.70        2.1940    2   1   0         4
                44.94         11.83        2.0171    1   2   1         8
                48.79         70.68        1.8663    2   1   1         8
                49.89          6.08        1.8278    2   2   0         4
                51.48         29.05        1.7751    0   0   2         2
                51.63          8.98        1.7703    1   3   0         4
                54.61         33.11        1.6804    0   3   1         4
                56.64          9.21        1.6250    2   2   1         8
                57.74          1.67        1.5968    1   1   2         8
                58.24         16.17        1.5842    1   3   1         8
                60.67         11.49        1.5263    3   1   0         4
                61.47          1.44        1.5084    0   2   2         4
                62.44          1.36        1.4874    2   3   0         4
                64.42          1.31        1.4463    3   0   1         4
                64.85         28.01        1.4377    1   2   2         8
                65.21          3.04        1.4308    0   4   0         2
                65.66          4.30        1.4219    2   0   2         4
                66.71          8.50        1.4022    3   1   1         8
                67.61          7.61        1.3856    3   2   0         4
                67.92          2.72        1.3800    2   1   2         8
                68.38          3.02        1.3719    2   3   1         8
                73.35          2.87        1.2908    3   2   1         8
                74.52          2.96        1.2734    2   2   2         8
                75.91          4.73        1.2535    1   3   2         8
                77.95         12.39        1.2256    2   4   0         4
                80.94          3.24        1.1877    4   0   0         2
                83.04          2.37        1.1630    4   1   0         4
                83.54          8.06        1.1573    3   1   2         8
                83.97          3.22        1.1525    3   3   1         8
                84.35          2.08        1.1483    1   0   3         4
                85.10          1.06        1.1401    2   3   2         8
                86.43          6.33        1.1258    1   1   3         8
                87.59          2.70        1.1139    0   4   2         4
                87.70          1.28        1.1128    1   5   0         4
                89.79          6.75        1.0922    3   2   2         8
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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.