Rhodocrosite
      Merlini M, Hanfland M, Gemmi M
      American Mineralogist 100 (2015) 2625-2629
      The MnCO3-II high-pressure polymorph of rhodocrosite
      Note: Sample run2-p20
      Note: P = 17.66 GPa
      Locality: Sardegna, Italy
      _database_code_amcsd 0020377

      CELL PARAMETERS:    4.6679   4.6679  14.4441   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    272.561
      Density (g/cm3):      4.179
      MAX. ABS. INTENSITY / VOLUME**2:      42.69628502    
      RIR:      3.326
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.25         32.21        3.5275    0   1   2         6
                33.27        100.00        2.6931    1   0   4         6
                38.57         21.36        2.3340    1   1   0         6
                43.07         17.10        2.1002    1   1   3        12
                46.66         19.03        1.9465    2   0   2         6
                51.84          9.25        1.7638    0   2   4         6
                54.78         23.55        1.6757    1   1   6        12
                55.76         15.38        1.6486    0   1   8         6
                60.98          2.08        1.5195    2   1   1        12
                62.09         11.27        1.4948    1   2   2        12
                66.44          7.94        1.4071    2   1   4        12
                69.05          1.52        1.3602    1   0  10         6
                69.61          1.10        1.3506    1   2   5        12
                69.79          8.32        1.3475    3   0   0         6
                69.85          2.94        1.3465    2   0   8         6
                71.32          1.72        1.3224    1   1   9        12
                79.65          2.27        1.2037    0   0  12         2
                81.99          1.96        1.1752    0   2  10         6
                82.75          3.44        1.1663    1   2   8        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.