Aragonite
      Antao S M, Hassan I
      The Canadian Mineralogist 48 (2010) 1225-1236
      Temperature dependence of the structural parameters
      in the transformation of aragonite to calcite,
      as determined from in situ synchrotron powder X-ray-diffraction data
      Locality: Cuenca, Spain
      Note: T = 420 C
      Note: P = 101 kPa
      _database_code_amcsd 0017845

      CELL PARAMETERS:    4.9744   8.0432   5.8300   90.000   90.000   90.000
      SPACE GROUP: Pmcn      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    233.259
      Density (g/cm3):      2.850
      MAX. ABS. INTENSITY / VOLUME**2:      10.00477271    
      RIR:      1.143
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                21.00          1.75        4.2307    1   1   0         4
                22.10          2.22        4.0216    0   2   0         2
                26.02        100.00        3.4241    1   1   1         8
                26.93         50.85        3.3104    0   2   1         4
                30.67          4.00        2.9150    0   0   2         2
                32.49          7.51        2.7559    1   2   1         8
                32.68         46.89        2.7406    0   1   2         4
                35.70         18.96        2.5150    1   0   2         4
                36.11         15.90        2.4872    2   0   0         2
                36.90         10.13        2.4358    0   3   1         4
                37.47         44.57        2.4004    1   1   2         8
                38.13         15.76        2.3602    0   2   2         4
                38.13         26.27        2.3601    1   3   0         4
                41.02         10.50        2.2004    2   1   1         8
                42.75         17.07        2.1153    2   2   0         4
                45.09          2.63        2.0108    0   4   0         2
                45.62         58.28        1.9885    2   2   1         8
                47.85         25.37        1.9009    0   4   1         4
                48.09         11.65        1.8921    2   0   2         4
                49.49          2.15        1.8418    2   1   2         8
                49.71         25.35        1.8343    1   3   2         8
                51.46          2.30        1.7757    1   4   1         8
                51.77         25.92        1.7659    1   1   3         8
                52.28         10.92        1.7498    0   2   3         4
                52.59          4.47        1.7403    2   3   1         8
                53.52          2.63        1.7121    2   2   2         8
                55.52          3.24        1.6552    0   4   2         4
                56.68          1.74        1.6240    3   1   0         4
                59.05          5.50        1.5644    3   1   1         8
                59.08          1.72        1.5637    2   4   0         4
                59.62          1.86        1.5507    0   5   1         4
                61.39          4.29        1.5103    2   4   1         8
                62.66          1.95        1.4826    3   2   1         8
                62.76          5.96        1.4804    1   5   1         8
                65.03          2.12        1.4341    0   1   4         4
                65.83          3.12        1.4187    3   1   2         8
                66.28          2.52        1.4102    3   3   0         4
                68.03          3.00        1.3780    1   1   4         8
                68.04          2.91        1.3780    2   4   2         8
                68.47          1.56        1.3703    0   2   4         4
                69.34          2.21        1.3551    1   5   2         8
                70.21          1.66        1.3405    0   6   0         2
                74.79          5.39        1.2695    3   3   2         8
                75.62          3.53        1.2575    2   0   4         4
                76.43          6.28        1.2461    3   1   3         8
                76.62          3.55        1.2436    4   0   0         2
                76.88          5.32        1.2401    1   3   4         8
                78.51          4.78        1.2183    2   4   3         8
                78.54          1.65        1.2179    0   6   2         4
                79.75          4.99        1.2024    1   5   3         8
                81.58          5.10        1.1800    2   6   0         4
                82.94          2.48        1.1642    4   2   1         8
                85.79          2.83        1.1326    3   5   1         8
                86.60          1.60        1.1241    1   1   5         8
                87.01          1.31        1.1199    0   2   5         4
                89.04          1.21        1.0995    1   7   1         8
                89.63          1.25        1.0938    2   6   2         8
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.