Calcite
      Markgraf S A, Reeder R J
      American Mineralogist 70 (1985) 590-600
      High-temperature structure refinements of calcite and magnesite
      Sample: T = 400 C
      _database_code_amcsd 0000986

      CELL PARAMETERS:    4.9800   4.9800  17.2240   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    369.933
      Density (g/cm3):      2.695
      MAX. ABS. INTENSITY / VOLUME**2:      24.84677529    
      RIR:      3.002
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.06          8.48        3.8563    0   1   2         6
                29.31        100.00        3.0472    1   0   4         6
                31.16          1.88        2.8707    0   0   6         2
                36.07         14.27        2.4900    1   1   0         6
                39.45         16.18        2.2844    1   1   3        12
                43.25         12.92        2.0918    2   0   2         6
                47.13          6.08        1.9281    0   2   4         6
                47.18         17.88        1.9263    0   1   8         6
                48.39         17.44        1.8810    1   1   6        12
                56.72          2.46        1.6228    2   1   1        12
                57.54          7.67        1.6016    1   2   2        12
                60.75          4.79        1.5245    2   1   4        12
                60.79          2.29        1.5236    2   0   8         6
                61.07          1.91        1.5174    1   1   9        12
                63.10          1.37        1.4734    1   2   5        12
                64.86          4.89        1.4376    3   0   0         6
                64.97          2.82        1.4353    0   0  12         2
                69.90          1.63        1.3458    0   2  10         6
                72.77          2.32        1.2996    1   2   8        12
                76.62          1.76        1.2435    1   1  12        12
                81.26          1.60        1.1839    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.