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 = 0.0 GPa
      Locality: Paradox Valley, Uravan District, Montrose County, Colorado, USA
      _database_code_amcsd 0020709

      CELL PARAMETERS:    4.8040   5.7810   3.5817   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     99.471
      Density (g/cm3):      7.136
      MAX. ABS. INTENSITY / VOLUME**2:      89.45661837    
      RIR:      4.082
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.09         13.05        3.6948    1   1   0         4
                29.33         15.09        3.0447    0   1   1         4
                30.94          6.25        2.8905    0   2   0         2
                31.15         48.95        2.8715    1   0   1         4
                34.89        100.00        2.5717    1   1   1         8
                36.27         82.81        2.4767    1   2   0         4
                37.44         11.01        2.4020    2   0   0         2
                40.68          6.56        2.2181    2   1   0         4
                44.47         11.76        2.0371    1   2   1         8
                48.26         69.96        1.8858    2   1   1         8
                49.33          6.34        1.8474    2   2   0         4
                51.00         28.58        1.7909    0   0   2         2
                51.07          8.96        1.7885    1   3   0         4
                54.04         33.14        1.6970    0   3   1         4
                56.01          8.82        1.6419    2   2   1         8
                57.16          1.76        1.6115    1   1   2         8
                57.61         15.30        1.6001    1   3   1         8
                59.94         11.22        1.5432    3   1   0         4
                60.85          1.37        1.5223    0   2   2         4
                61.71          1.26        1.5031    2   3   0         4
                63.65          1.18        1.4619    3   0   1         4
                64.18         27.10        1.4512    1   2   2         8
                64.47          2.87        1.4453    0   4   0         2
                64.95          4.10        1.4357    2   0   2         4
                65.91          8.41        1.4173    3   1   1         8
                66.78          7.46        1.4007    3   2   0         4
                67.18          2.59        1.3934    2   1   2         8
                67.59          2.96        1.3860    2   3   1         8
                72.45          2.95        1.3045    3   2   1         8
                73.67          3.06        1.2858    2   2   2         8
                75.06          4.65        1.2655    1   3   2         8
                77.00         11.98        1.2384    2   4   0         4
                79.87          3.19        1.2010    4   0   0         2
                81.93          2.23        1.1759    4   1   0         4
                82.51          7.67        1.1691    3   1   2         8
                82.89          2.98        1.1647    3   3   1         8
                83.42          2.00        1.1587    1   0   3         4
                85.47          5.98        1.1361    1   1   3         8
                86.54          2.44        1.1247    0   4   2         4
                86.60          1.22        1.1241    1   5   0         4
                88.65          6.36        1.1033    3   2   2         8
                88.96          4.31        1.1003    0   5   1         4
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.