Knorringite
      Juhin A, Morin G, Elkaim E, Frost D J, Fialin M, Juillot F, Calas G
      American Mineralogist 95 (2010) 59-63
      Structure refinement of a synthetic knorringite, Mg3(Cr0.8Mg0.1Si0.1)2(SiO4)3
      Locality: synthetic
      _database_code_amcsd 0004999

      CELL PARAMETERS:   11.5935  11.5935  11.5935   90.000   90.000   90.000
      SPACE GROUP: Ia-3d     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:   1558.274
      Density (g/cm3):      3.792
      MAX. ABS. INTENSITY / VOLUME**2:      15.18360674    
      RIR:      1.304
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.75          7.89        4.7330    2   1   1        24
                21.68         39.19        4.0989    2   2   0        12
                28.81          6.29        3.0985    3   2   1        48
                30.85         92.80        2.8984    4   0   0         6
                34.60         87.50        2.5924    4   2   0        24
                36.35         32.29        2.4717    3   3   2        24
                38.02         74.93        2.3665    4   2   2        24
                39.64         23.35        2.2737    4   3   1        48
                42.72          9.34        2.1167    5   2   1        48
                48.40          9.53        1.8807    6   1   1        24
                48.40          6.65        1.8807    5   3   2        48
                49.74         23.86        1.8331    6   2   0        24
                53.62          1.16        1.7094    6   3   1        48
                54.86          4.97        1.6734    4   4   4         8
                57.31         35.19        1.6077    6   4   0        24
                59.68        100.00        1.5492    6   4   2        48
                63.15          1.72        1.4724    7   3   2        48
                64.28         13.41        1.4492    8   0   0         6
                65.40          2.37        1.4271    7   4   1        48
                67.61          3.06        1.3857    6   5   3        48
                68.70          3.59        1.3663    8   2   2        24
                71.93          1.24        1.3127    7   5   2        48
                72.99         19.30        1.2962    8   4   0        24
                75.10         15.68        1.2650    8   4   2        48
                76.14          2.91        1.2502    7   6   1        48
                77.19         14.83        1.2359    6   6   4        24
                78.22          1.45        1.2221    8   5   1        48
                78.22          1.82        1.2221    7   5   4        48
                81.31          2.22        1.1833    8   4   4        24
                82.34          2.42        1.1711    8   5   3        48
                82.34          2.00        1.1711    9   4   1        48
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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.