CaMg2Al6O12
      Miura H, Hamada Y, Suzuki T, Akaogi M, Miyajima N, Fujino K
      American Mineralogist 85 (2000) 1799-1803
      Crystal structure of MaMg2Al6O12, a new Al-rich high pressure form
      _database_code_amcsd 0002595

      CELL PARAMETERS:    8.7616   8.7616   2.7850   90.000   90.000  120.000
      SPACE GROUP: P6_3/m    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    185.150
      Density (g/cm3):      3.969
      MAX. ABS. INTENSITY / VOLUME**2:      12.07172819    
      RIR:      0.990
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.27          2.47        4.3808    1   1   0         6
                23.45          4.97        3.7939    2   0   0         6
                31.19          1.42        2.8679    1   2   0         6
                31.19          1.62        2.8679    2   1   0         6
                34.30          2.21        2.6145    1   0   1        12
                35.49        100.00        2.5293    3   0   0         6
                38.30         32.04        2.3503    1   1   1        12
                40.17         10.63        2.2450    2   0   1        12
                41.21          4.30        2.1904    2   2   0         6
                42.98         37.84        2.1045    1   3   0         6
                45.39         20.22        1.9980    1   2   1        12
                45.39         52.50        1.9980    2   1   1        12
                47.96          5.07        1.8969    4   0   0         6
                48.63          2.92        1.8724    3   0   1        12
                52.57          6.02        1.7408    2   3   0         6
                53.20         46.46        1.7217    2   2   1        12
                54.66         18.78        1.6790    3   1   1        12
                54.66          1.65        1.6790    1   3   1        12
                58.91          4.11        1.5678    4   0   1        12
                62.97          3.07        1.4761    2   3   1        12
                62.97          1.31        1.4761    3   2   1        12
                63.73         22.57        1.4603    3   3   0         6
                65.04          2.49        1.4340    4   2   0         6
                65.59         11.13        1.4232    1   4   1        12
                65.59         31.57        1.4232    4   1   1        12
                67.23         17.80        1.3925    0   0   2         2
                68.90          1.12        1.3628    5   1   0         6
                73.18          1.58        1.2933    3   3   1        12
                74.41          2.82        1.2749    4   2   1        12
                74.41          3.13        1.2749    2   4   1        12
                75.12         10.81        1.2646    6   0   0         6
                78.07          1.53        1.2241    1   5   1        12
                78.39         12.69        1.2198    3   0   2        12
                83.19          4.07        1.1613    1   3   2        12
                84.06          1.04        1.1515    6   0   1        12
                86.75          1.10        1.1225    4   0   2        12
                87.62          1.33        1.1136    5   2   1        12
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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.