Cr Er O4
      Buisson G, Bertaut F, Mareschal J
      Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences 259 (1964) 411-413
      Etude cristallographique des composes T Cr O4 (T= terre rare ou Y)
      _cod_database_code 1008140
      _database_code_amcsd 0016082

      CELL PARAMETERS:    7.0930   7.0930   6.2300   90.000   90.000   90.000
      SPACE GROUP: I4_1/amd  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    313.435
      Density (g/cm3):      6.002
      MAX. ABS. INTENSITY / VOLUME**2:      180.8996931    
      RIR:      9.814
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.96         37.29        4.6808    1   0   1         8
                25.11        100.00        3.5465    2   0   0         4
                31.65         13.49        2.8268    2   1   1        16
                33.88         70.12        2.6462    1   1   2         8
                35.81         22.01        2.5078    2   2   0         4
                38.46          2.43        2.3404    2   0   2         8
                40.82         12.96        2.2105    3   0   1         8
                45.51          8.17        1.9930    1   0   3         8
                48.53         11.29        1.8759    3   2   1        16
                50.12         51.04        1.8202    3   1   2        16
                51.54         13.37        1.7732    4   0   0         4
                52.68          4.53        1.7375    2   1   3        16
                55.41          3.15        1.6582    4   1   1        16
                58.16         11.40        1.5860    4   2   0         8
                59.22          1.82        1.5603    3   0   3         8
                59.34          2.55        1.5575    0   0   4         2
                63.11         13.11        1.4731    3   3   2         8
                65.45          8.81        1.4260    2   0   4         8
                67.75          3.55        1.3832    4   3   1        16
                71.17          2.01        1.3248    4   1   3        16
                71.28          7.72        1.3231    2   2   4         8
                74.74          9.77        1.2702    5   1   2        16
                75.88          2.53        1.2539    4   4   0         4
                81.40          3.07        1.1822    6   0   0         4
                82.31          1.05        1.1714    5   0   3         8
                82.42          3.74        1.1702    4   0   4         8
                83.32          1.55        1.1597    2   1   5        16
                85.74          7.35        1.1331    5   3   2        16
                86.85          3.63        1.1215    6   2   0         8
                87.85          7.32        1.1113    4   2   4        16
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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.