Phase-D (Al-rich)
      Boffa Ballaran T, Frost D J, Miyajima N, Heidelbach F
      American Mineralogist 95 (2010) 1113-1116
      The structure of a super-aluminous version of the dense
      hydrous-magnesium silicate phase D
      Locality: synthetic
      _database_code_amcsd 0005072

      CELL PARAMETERS:    4.7621   4.7621   4.2964   90.000   90.000  120.000
      SPACE GROUP: P-31m     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     84.379
      Density (g/cm3):      3.405
      MAX. ABS. INTENSITY / VOLUME**2:      11.50290921    
      RIR:      1.100
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                30.03         80.24        2.9752    1   0   1        12
                37.78         11.05        2.3811    1   1   0         6
                43.45         47.24        2.0826    2  -1   1         6
                43.45         52.76        2.0826    1   1   1         6
                49.00         17.15        1.8590    2   0   1        12
                57.81         42.53        1.5950    2  -1   2         6
                57.81         42.53        1.5950    1   1   2         6
                63.49          7.02        1.4653    3  -1   1        12
                63.49          6.64        1.4653    2   1   1        12
                68.22         38.76        1.3747    3   0   0         6
                69.48          4.90        1.3529    1   0   3        12
                77.83          3.57        1.2272    1   1   3         6
                77.83          3.86        1.2272    2  -1   3         6
                81.90          2.73        1.1763    2   0   3        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.