Rhodocrosite
      Merlini M, Hanfland M, Gemmi M
      American Mineralogist 100 (2015) 2625-2629
      The MnCO3-II high-pressure polymorph of rhodocrosite
      Note: Sample run1-p8
      Note: P = 36.20 GPa
      Locality: Sardegna, Italy
      _database_code_amcsd 0020349

      CELL PARAMETERS:    4.6100   4.6100  13.5820   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    249.975
      Density (g/cm3):      4.557
      MAX. ABS. INTENSITY / VOLUME**2:      43.70673099    
      RIR:      3.123
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                25.89         36.89        3.4417    0   1   2         6
                34.68        100.00        2.5865    1   0   4         6
                39.08         24.21        2.3050    1   1   0         6
                44.09         17.07        2.0541    1   1   3        12
                47.47         20.47        1.9152    2   0   2         6
                53.23         10.16        1.7208    0   2   4         6
                57.02         23.08        1.6151    1   1   6        12
                59.13         13.77        1.5624    0   1   8         6
                61.87          1.87        1.4997    2   1   1        12
                63.11         12.04        1.4730    1   2   2        12
                67.98          8.88        1.3789    2   1   4        12
                70.80          8.94        1.3308    3   0   0         6
                73.18          3.03        1.2933    2   0   8         6
                73.68          1.52        1.2858    1   0  10         6
                75.26          1.30        1.2626    1   1   9        12
                85.86          1.83        1.1318    0   0  12         2
                86.24          3.72        1.1279    1   2   8        12
                86.71          1.82        1.1229    0   2  10         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.