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 = 50.4 K, P = 0.0001 GPa
      Locality: Paradox Valley, Uravan District, Montrose County, Colorado, USA
      _database_code_amcsd 0020719

      CELL PARAMETERS:    4.7834   5.7767   3.5789   90.000   90.000   90.000
      SPACE GROUP: Pnnm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     98.893
      Density (g/cm3):      7.178
      MAX. ABS. INTENSITY / VOLUME**2:      91.14038697    
      RIR:      4.134
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.16         12.96        3.6843    1   1   0         4
                29.36         15.32        3.0423    0   1   1         4
                30.96          6.30        2.8884    0   2   0         2
                31.21         48.32        2.8656    1   0   1         4
                34.95        100.00        2.5671    1   1   1         8
                36.33         83.14        2.4726    1   2   0         4
                37.61         11.13        2.3917    2   0   0         2
                40.84          6.45        2.2098    2   1   0         4
                44.54         11.73        2.0343    1   2   1         8
                48.41         70.35        1.8803    2   1   1         8
                49.48          6.23        1.8421    2   2   0         4
                51.04         28.96        1.7895    0   0   2         2
                51.14          8.92        1.7863    1   3   0         4
                54.08         33.49        1.6957    0   3   1         4
                56.16          8.85        1.6379    2   2   1         8
                57.23          1.74        1.6096    1   1   2         8
                57.68         15.84        1.5983    1   3   1         8
                60.21         11.19        1.5370    3   1   0         4
                60.90          1.38        1.5212    0   2   2         4
                61.86          1.28        1.4999    2   3   0         4
                63.92          1.21        1.4565    3   0   1         4
                64.25         28.01        1.4496    1   2   2         8
                64.53          3.03        1.4442    0   4   0         2
                65.10          4.34        1.4328    2   0   2         4
                66.17          8.69        1.4123    3   1   1         8
                67.05          7.74        1.3959    3   2   0         4
                67.33          2.63        1.3907    2   1   2         8
                67.74          3.16        1.3833    2   3   1         8
                72.71          2.92        1.3005    3   2   1         8
                73.83          3.05        1.2836    2   2   2         8
                75.15          4.71        1.2642    1   3   2         8
                77.16         12.44        1.2363    2   4   0         4
                80.28          3.31        1.1959    4   0   0         2
                82.35          2.30        1.1710    4   1   0         4
                82.78          7.84        1.1659    3   1   2         8
                83.16          3.20        1.1616    3   3   1         8
                83.52          2.04        1.1575    1   0   3         4
                85.57          6.34        1.1350    1   1   3         8
                86.62          2.67        1.1238    0   4   2         4
                86.70          1.25        1.1230    1   5   0         4
                88.92          6.82        1.1006    3   2   2         8
                89.04          4.57        1.0995    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.