Huntite
      Dollase W A, Reeder R J
      American Mineralogist 71 (1986) 163-166
      Crystal structure refinement of huntite, CaMg3(CO3)4, with X-ray powder data
      _database_code_amcsd 0001006

      CELL PARAMETERS:    9.5027   9.5027   7.8212   90.000   90.000  120.000
      SPACE GROUP: R32       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    611.643
      Density (g/cm3):      2.875
      MAX. ABS. INTENSITY / VOLUME**2:      17.40591402    
      RIR:      1.971
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.63          1.40        5.6693    1   0   1         6
                24.44          1.99        3.6416    0   2   1         6
                30.94         18.79        2.8903    2   1   1         6
                31.56        100.00        2.8346    2   0   2         6
                32.64          2.36        2.7432    3   0   0         6
                34.40          8.81        2.6071    0   0   3         2
                36.93          9.24        2.4343    1   2   2         6
                37.87         10.46        2.3757    2   2   0         3
                39.42          5.53        2.2856    1   1   3         6
                41.20          7.52        2.1911    1   3   1         6
                45.59          7.64        1.9897    4   0   1         6
                46.04         23.47        1.9713    3   1   2         6
                49.68          3.47        1.8353    3   2   1         6
                50.10          2.51        1.8208    0   4   2         6
                50.84          3.35        1.7958    4   1   0         6
                51.76         15.70        1.7660    0   2   4         6
                52.08         14.64        1.7560    2   2   3         6
                53.93          3.19        1.7002    2   3   2         6
                58.26          9.65        1.5838    3   3   0         3
                60.72          2.65        1.5254    2   4   1         6
                62.55          5.29        1.4849    1   3   4         6
                62.83          2.13        1.4789    1   4   3         6
                62.83          2.74        1.4789    4   1   3         6
                64.12          2.84        1.4524    5   1   1         6
                64.48          2.81        1.4452    4   2   2         6
                65.90          1.91        1.4173    4   0   4         6
                66.96          2.47        1.3975    1   2   5         6
                67.78          1.19        1.3826    1   5   2         6
                68.40          2.46        1.3716    6   0   0         6
                69.44          1.59        1.3536    3   3   3         6
                71.61          2.96        1.3178    5   2   0         6
                72.51          4.16        1.3035    0   0   6         2
                74.16          1.19        1.2786    3   4   2         6
                75.50          1.27        1.2592    0   5   4         6
                76.50          1.66        1.2452    0   4   5         6
                76.94          2.23        1.2391    1   6   1         6
                78.60          1.26        1.2172    2   4   4         6
                84.84          1.37        1.1428    2   2   6         6
                86.43          3.40        1.1259    0   7   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.