Calcite
      Wyckoff R
      American Journal of Science 50 (1920) 317-360
      The Crystal Structures of some Carbonates of the Calcite Group
      _cod_database_code 1010962
      _database_code_amcsd 0017889

      CELL PARAMETERS:    6.3600   6.3600   6.3600   46.100   46.100   46.100
      SPACE GROUP: R3c       
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    121.857
      Density (g/cm3):      2.727
      MAX. ABS. INTENSITY / VOLUME**2:      27.98364149    
      RIR:      3.341
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.12          5.95        3.8471    1   1   0         3
                29.49        100.00        3.0289    2   1   1         3
                31.54          2.31        2.8364    2   2   2         1
                36.07         14.27        2.4902    0  -1   1         6
                39.52         17.48        2.2802    2   1   0         6
                43.28         13.67        2.0905    2   0   0         3
                47.25          5.82        1.9236    2   2   0         3
                47.67         19.56        1.9079    3   3   2         3
                48.66         17.93        1.8713    3   2   1         6
                56.73          3.97        1.6228    0  -1   2         6
                57.57          9.33        1.6011    2  -1   1         6
                60.85          4.64        1.5223    3   1   0         6
                63.25          2.44        1.4703    3   2   0         6
                64.85          5.75        1.4377    1  -2   1         3
                76.51          1.02        1.2451    0  -2   2         6
                84.05          4.34        1.1516    3  -1   2         6
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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.