Calcite
      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 = 662 C
      Note: P = 101 kPa
      _database_code_amcsd 0017867

      CELL PARAMETERS:    4.9759   4.9759  17.4316   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    373.776
      Density (g/cm3):      2.667
      MAX. ABS. INTENSITY / VOLUME**2:      23.52432896    
      RIR:      2.872
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.02          7.97        3.8629    0   1   2         6
                29.14        100.00        3.0642    1   0   4         6
                30.78          1.46        2.9053    0   0   6         2
                36.10         14.18        2.4880    1   1   0         6
                39.40         12.81        2.2871    1   1   3        12
                43.25         12.25        2.0917    2   0   2         6
                46.71         16.17        1.9445    0   1   8         6
                47.05          5.36        1.9315    0   2   4         6
                48.15         15.77        1.8897    1   1   6        12
                56.77          1.86        1.6217    2   1   1        12
                57.57          7.09        1.6010    1   2   2        12
                60.42          1.87        1.5321    2   0   8         6
                60.59          1.23        1.5283    1   1   9        12
                60.70          3.66        1.5257    2   1   4        12
                64.11          2.10        1.4526    0   0  12         2
                64.92          3.21        1.4364    3   0   0         6
                69.34          1.42        1.3552    0   2  10         6
                72.45          1.65        1.3046    1   2   8        12
                75.84          1.35        1.2545    1   1  12        12
                80.75          1.34        1.1901    2   1  10        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.