Rhodocrosite
      Merlini M, Hanfland M, Gemmi M
      American Mineralogist 100 (2015) 2625-2629
      The MnCO3-II high-pressure polymorph of rhodocrosite
      Note: Sample run2-p2
      Note: P = .79 GPa
      Locality: Sardegna, Italy
      _database_code_amcsd 0020359

      CELL PARAMETERS:    4.7753   4.7753  15.6360   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    308.786
      Density (g/cm3):      3.689
      MAX. ABS. INTENSITY / VOLUME**2:      41.49383067    
      RIR:      3.662
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.35         28.62        3.6556    0   1   2         6
                31.49        100.00        2.8408    1   0   4         6
                37.67         19.71        2.3877    1   1   0         6
                41.60         16.78        2.1707    1   1   3        12
                45.37         18.68        1.9990    2   0   2         6
                49.89          9.38        1.8278    0   2   4         6
                51.73         18.69        1.7671    0   1   8         6
                51.94         26.25        1.7605    1   1   6        12
                59.43          2.25        1.5553    2   1   1        12
                60.39         12.05        1.5327    1   2   2        12
                63.62          1.99        1.4626    1   0  10         6
                64.17          8.50        1.4514    2   1   4        12
                65.74          3.51        1.4204    2   0   8         6
                66.57          2.27        1.4048    1   1   9        12
                66.92          1.32        1.3982    1   2   5        12
                68.01          8.81        1.3785    3   0   0         6
                72.55          3.29        1.3030    0   0  12         2
                76.36          2.70        1.2472    0   2  10         6
                78.33          4.18        1.2207    1   2   8        12
                84.76          2.63        1.1438    1   1  12        12
                88.43          3.02        1.1054    2   1  10        12
                88.93          1.91        1.1006    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.