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 = 458 C
      Note: P = 101 kPa
      _database_code_amcsd 0017857

      CELL PARAMETERS:    4.9766   4.9766  17.2840   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    370.715
      Density (g/cm3):      2.690
      MAX. ABS. INTENSITY / VOLUME**2:      24.81739947    
      RIR:      3.005
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.06          9.11        3.8568    0   1   2         6
                29.27        100.00        3.0515    1   0   4         6
                31.05          1.67        2.8807    0   0   6         2
                36.10         14.25        2.4883    1   1   0         6
                39.45         15.89        2.2843    1   1   3        12
                43.27         13.82        2.0909    2   0   2         6
                47.05         18.03        1.9314    0   1   8         6
                47.13          6.10        1.9284    0   2   4         6
                48.33         18.97        1.8831    1   1   6        12
                56.76          2.41        1.6218    2   1   1        12
                57.44          1.13        1.6042    1   0  10         6
                57.58          8.64        1.6008    1   2   2        12
                60.70          2.33        1.5257    2   0   8         6
                60.76          4.83        1.5243    2   1   4        12
                60.94          1.88        1.5203    1   1   9        12
                63.09          1.34        1.4736    1   2   5        12
                64.72          2.86        1.4403    0   0  12         2
                64.91          4.84        1.4366    3   0   0         6
                69.75          1.94        1.3483    0   2  10         6
                72.70          2.38        1.3007    1   2   8        12
                76.40          1.84        1.2466    1   1  12        12
                81.13          2.00        1.1855    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.