Vaterite
      Le Bail A, Ouhenia S, Chateigner D
      Powder Diffraction 26 (2011) 16-21
      Microtwinning hypothesis for a more ordered vaterite model
      Note: Kamhi (1963) model, not preferred
      Locality: synthetic
      _database_code_amcsd 0019141

      CELL PARAMETERS:    4.1304   4.1304   8.4749   90.000   90.000  120.000
      SPACE GROUP: P6_3/mmc  
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    125.213
      Density (g/cm3):      2.654
      MAX. ABS. INTENSITY / VOLUME**2:      11.90389143    
      RIR:      1.460
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.96          7.71        4.2375    0   0   2         2
                24.89         59.51        3.5770    1   0   0         6
                27.06        100.00        3.2955    1   0   1        12
                32.76         90.37        2.7334    1   0   2        12
                40.70          2.53        2.2170    1   0   3        12
                42.67          5.81        2.1187    0   0   4         2
                43.84         62.05        2.0652    1   1   0         6
                49.07         22.16        1.8565    1   1   2        12
                50.04         50.12        1.8229    1   0   4        12
                51.07          4.26        1.7885    2   0   0         6
                52.28          1.07        1.7500    2   0   1        12
                55.79         22.92        1.6478    2   0   2        12
                61.35          1.67        1.5111    2   0   3        12
                62.84          4.23        1.4789    1   1   4        12
                68.68          7.54        1.3667    2   0   4        12
                69.53          2.98        1.3520    2   1   0        12
                70.54          2.16        1.3351    2   1   1        24
                71.86          5.71        1.3138    1   0   6        12
                73.53         13.91        1.2880    2   1   2        24
                80.57          2.71        1.1923    3   0   0         6
                82.79          2.31        1.1659    1   1   6        12
                84.39          3.53        1.1478    3   0   2        12
                85.13          6.60        1.1397    2   1   4        24
                88.13          3.77        1.1085    2   0   6        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.