Calcite
      Paquette J, Reeder R J
      American Mineralogist 75 (1990) 1151-1158
      Single-crystal X-ray structure refinements of two biogenic magnesian calcite
      crystals
      sample LB
      _database_code_amcsd 0001328

      CELL PARAMETERS:    4.9382   4.9382  16.8320   90.000   90.000  120.000
      SPACE GROUP: R-32/c    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    355.471
      Density (g/cm3):      2.748
      MAX. ABS. INTENSITY / VOLUME**2:      24.72400663    
      RIR:      2.930
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                23.33          7.31        3.8126    0   1   2         6
                29.79        100.00        2.9995    1   0   4         6
                31.90          2.55        2.8053    0   0   6         2
                36.39         13.59        2.4691    1   1   0         6
                39.89         19.51        2.2599    1   1   3        12
                43.68         13.83        2.0725    2   0   2         6
                47.71          6.21        1.9063    0   2   4         6
                48.20         18.57        1.8879    0   1   8         6
                49.16         19.23        1.8535    1   1   6        12
                57.26          3.05        1.6090    2   1   1        12
                58.11          8.65        1.5874    1   2   2        12
                61.45          5.35        1.5089    2   1   4        12
                61.87          2.43        1.4997    2   0   8         6
                62.28          2.52        1.4908    1   1   9        12
                63.88          1.76        1.4571    1   2   5        12
                65.48          6.21        1.4255    3   0   0         6
                66.68          3.30        1.4027    0   0  12         2
                70.15          1.09        1.3415    2   1   7        12
                71.31          1.94        1.3226    0   2  10         6
                73.94          2.71        1.2818    1   2   8        12
                78.41          1.95        1.2196    1   1  12        12
                82.79          2.03        1.1659    2   1  10        12
                84.95          1.33        1.1416    1   3   4        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.