Er2 Si3.333
      Auffret S, Pierre J, Lambert B, Soubeyroux J, Chroboczek J
      Physica B 162 (1990) 271-280
      Crystallographic and magnetic structures of Er3Si5
      _cod_database_code 1008488
      _database_code_amcsd 0016381

      CELL PARAMETERS:    6.5380   3.7930   4.0820   90.000   90.000   90.000
      SPACE GROUP: Pmmm      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    101.228
      Density (g/cm3):      7.022
      MAX. ABS. INTENSITY / VOLUME**2:      253.8277226    
      RIR:     11.769
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                13.54          1.65        6.5380    1   0   0         2
                21.77         28.76        4.0820    0   0   1         2
                27.18         44.49        3.2809    1   1   0         4
                27.28         33.35        3.2690    2   0   0         2
                35.09        100.00        2.5572    1   1   1         8
                35.17         35.94        2.5516    2   0   1         4
                44.38         14.37        2.0410    0   0   2         2
                47.97         11.19        1.8965    0   2   0         2
                48.16         18.41        1.8896    3   1   0         4
                52.83         12.43        1.7330    1   1   2         8
                52.88          9.28        1.7313    2   0   2         4
                53.26          4.64        1.7199    0   2   1         4
                53.43         12.40        1.7148    3   1   1         8
                56.06          7.57        1.6404    2   2   0         4
                56.28          2.49        1.6345    4   0   0         2
                60.86         12.12        1.5221    2   2   1         8
                61.07          8.33        1.5174    4   0   1         4
                67.41          6.92        1.3893    0   2   2         4
                67.56         11.35        1.3866    3   1   2         8
                74.16          5.51        1.2786    2   2   2         8
                74.35          1.77        1.2758    4   0   2         4
                75.67          7.85        1.2569    1   1   3         8
                75.71          2.76        1.2562    2   0   3         4
                76.78          1.57        1.2413    1   3   0         4
                77.02          1.56        1.2381    4   2   0         4
                77.16          3.07        1.2362    5   1   0         4
                80.95          6.29        1.1876    1   3   1         8
                81.18          6.21        1.1848    4   2   1         8
                81.32          3.30        1.1831    5   1   1         8
                88.56          2.04        1.1042    3   1   3         8
                89.65          2.27        1.0936    3   3   0         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.