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 = 500 C
      Note: P = 101 kPa
      _database_code_amcsd 0017859

      CELL PARAMETERS:    4.9775   4.9775  17.3105   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    371.418
      Density (g/cm3):      2.684
      MAX. ABS. INTENSITY / VOLUME**2:      24.59620155    
      RIR:      2.983
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.05          8.09        3.8586    0   1   2         6
                29.24        100.00        3.0541    1   0   4         6
                31.00          1.70        2.8851    0   0   6         2
                36.09         14.09        2.4887    1   1   0         6
                39.43         14.87        2.2852    1   1   3        12
                43.26         13.09        2.0915    2   0   2         6
                46.99         17.32        1.9338    0   1   8         6
                47.10          5.65        1.9293    0   2   4         6
                48.30         17.35        1.8845    1   1   6        12
                56.75          2.36        1.6221    2   1   1        12
                57.56          7.97        1.6011    1   2   2        12
                60.64          2.07        1.5270    2   0   8         6
                60.74          4.18        1.5248    2   1   4        12
                60.87          1.69        1.5219    1   1   9        12
                63.06          1.30        1.4742    1   2   5        12
                64.61          2.58        1.4425    0   0  12         2
                64.89          4.13        1.4369    3   0   0         6
                69.67          1.69        1.3496    0   2  10         6
                72.64          1.97        1.3016    1   2   8        12
                76.30          1.57        1.2480    1   1  12        12
                81.05          1.69        1.1864    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.