Na2CaMg(PO4)2
      Alkemper J, Fuess H
      Zeitschrift fur Kristallographie 213 (1998) 282-287
      The crystal structures of NaMgPO4, Na2CaMg(PO4)2 and Na18Ca13Mg5(PO4)18:
      new examples for glaserite related structures
      Locality: synthetic
      Note: known as the beta polymorph of Na2CaMg(PO4)2
      _database_code_amcsd 0011079

      CELL PARAMETERS:    5.3090   5.3090   7.2370   90.000   90.000  120.000
      SPACE GROUP: P-3m1     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    176.650
      Density (g/cm3):      2.823
      MAX. ABS. INTENSITY / VOLUME**2:      14.70450230    
      RIR:      1.696
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.23          3.54        7.2370    0   0   1         2
                22.92          1.14        3.8808    0   1   1         6
                22.92         77.05        3.8808    1   0   1         6
                24.60         18.94        3.6185    0   0   2         2
                31.46         23.99        2.8435    0   1   2         6
                31.46         54.55        2.8435    1   0   2         6
                33.77        100.00        2.6545    1   1   0         6
                36.04          5.65        2.4921    1   1   1        12
                37.27          5.51        2.4123    0   0   3         2
                39.19          5.21        2.2989    2   0   0         6
                41.20          3.04        2.1910    0   2   1         6
                41.20          9.66        2.1910    2   0   1         6
                46.82          8.21        1.9404    0   2   2         6
                46.82         42.48        1.9404    2   0   2         6
                50.44         11.68        1.8092    0   0   4         2
                51.17          1.56        1.7853    1   1   3        12
                54.29          7.43        1.6897    2   1   1        12
                54.50          2.06        1.6836    1   0   4         6
                54.50          2.60        1.6836    0   1   4         6
                55.19          4.60        1.6642    0   2   3         6
                58.96          6.43        1.5665    1   2   2        12
                58.96         10.30        1.5665    2   1   2        12
                60.40         14.32        1.5326    3   0   0         6
                62.08         30.69        1.4950    1   1   4        12
                67.89          1.59        1.3806    1   0   5         6
                71.02         19.51        1.3273    2   2   0         6
                74.70          1.01        1.2708    1   1   5        12
                75.74          2.25        1.2558    1   3   1        12
                76.44          2.22        1.2461    2   2   2        12
                79.73          4.94        1.2027    1   3   2        12
                79.73          2.91        1.2027    3   1   2        12
                82.48          4.73        1.1694    0   3   4         6
                82.48          6.68        1.1694    3   0   4         6
                82.72          1.48        1.1667    0   1   6         6
                82.72          2.84        1.1667    1   0   6         6
                87.76          2.20        1.1122    2   1   5        12
                89.45          1.11        1.0955    4   0   2         6
                89.45          3.72        1.0955    0   4   2         6
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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.