Aragonite
      Dal Negro A, Ungaretti L
      American Mineralogist 56 (1971) 768-772
      Refinement of the crystal structure of aragonite
      Locality: Vertaizon-Alvernia, France
      _database_code_amcsd 0000236

      CELL PARAMETERS:    4.9616   7.9705   5.7394   90.000   90.000   90.000
      SPACE GROUP: Pmcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    226.973
      Density (g/cm3):      2.929
      MAX. ABS. INTENSITY / VOLUME**2:      9.899715008    
      RIR:      1.101
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                21.09          1.87        4.2122    1   1   0         4
                26.24        100.00        3.3958    1   1   1         8
                27.24         56.97        3.2735    0   2   1         4
                31.17          4.31        2.8697    0   0   2         2
                32.78          8.39        2.7324    1   2   1         8
                33.18         52.12        2.7000    0   1   2         4
                36.16         28.68        2.4841    1   0   2         4
                36.21         17.84        2.4808    2   0   0         2
                37.30         15.29        2.4110    0   3   1         4
                37.94         41.13        2.3716    1   1   2         8
                38.43         28.75        2.3422    1   3   0         4
                38.66         19.27        2.3288    0   2   2         4
                41.23         13.75        2.1896    2   1   1         8
                42.94         20.62        2.1061    2   2   0         4
                45.52          3.49        1.9926    0   4   0         2
                45.90         71.44        1.9772    2   2   1         8
                48.35         30.99        1.8824    0   4   1         4
                48.51         18.95        1.8767    2   0   2         4
                49.92          1.86        1.8268    2   1   2         8
                50.28         29.73        1.8145    1   3   2         8
                51.96          3.29        1.7600    1   4   1         8
                52.54         31.05        1.7419    1   1   3         8
                52.96          7.07        1.7290    2   3   1         8
                53.10         14.13        1.7247    0   2   3         4
                54.01          2.42        1.6979    2   2   2         8
                56.20          2.76        1.6367    0   4   2         4
                56.86          1.84        1.6194    3   1   0         4
                59.29          6.30        1.5585    3   1   1         8
                60.25          2.07        1.5360    0   5   1         4
                61.87          6.31        1.4996    2   4   1         8
                62.97          3.22        1.4762    3   2   1         8
                63.39          7.23        1.4673    1   5   1         8
                66.17          3.87        1.4122    0   1   4         4
                66.27          3.03        1.4103    3   1   2         8
                66.61          3.57        1.4041    3   3   0         4
                68.71          3.79        1.3662    2   4   2         8
                69.17          5.30        1.3582    1   1   4         8
                69.65          2.04        1.3500    0   2   4         4
                70.15          3.04        1.3416    1   5   2         8
                70.95          1.88        1.3284    0   6   0         2
                75.36          7.40        1.2612    3   3   2         8
                76.73          3.04        1.2421    2   0   4         4
                76.85          5.97        1.2404    4   0   0         2
                77.17          9.55        1.2360    3   1   3         8
                78.11          6.85        1.2235    1   3   4         8
                78.77          1.82        1.2150    2   5   2         8
                79.47          7.78        1.2060    2   4   3         8
                79.51          3.09        1.2055    0   6   2         4
                80.84          6.36        1.1890    1   5   3         8
                82.31          1.05        1.1714    1   6   2         8
                82.34          9.31        1.1711    2   6   0         4
                83.31          3.60        1.1599    4   2   1         8
                86.31          1.43        1.1271    4   1   2         8
                86.47          3.89        1.1255    3   5   1         8
                88.23          2.73        1.1075    1   1   5         8
                88.68          1.11        1.1030    0   2   5         4
                89.53          1.70        1.0948    4   2   2         8
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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.