Rhodocrosite
      Merlini M, Hanfland M, Gemmi M
      American Mineralogist 100 (2015) 2625-2629
      The MnCO3-II high-pressure polymorph of rhodocrosite
      Note: Sample run2-p1
      Note: P = .22 GPa
      Locality: Sardegna, Italy
      _database_code_amcsd 0020358

      CELL PARAMETERS:    4.7788   4.7788  15.6850   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    310.208
      Density (g/cm3):      3.672
      MAX. ABS. INTENSITY / VOLUME**2:      41.40353588    
      RIR:      3.671
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.32         28.69        3.6602    0   1   2         6
                31.43        100.00        2.8465    1   0   4         6
                37.65         19.72        2.3894    1   1   0         6
                41.55         16.84        2.1732    1   1   3        12
                45.33         18.53        2.0008    2   0   2         6
                49.83          9.51        1.8301    0   2   4         6
                51.58         18.88        1.7718    0   1   8         6
                51.84         26.25        1.7637    1   1   6        12
                59.38          2.21        1.5565    2   1   1        12
                60.34         11.92        1.5340    1   2   2        12
                63.42          2.00        1.4667    1   0  10         6
                64.09          8.68        1.4529    2   1   4        12
                65.59          3.60        1.4232    2   0   8         6
                66.39          2.30        1.4080    1   1   9        12
                66.83          1.30        1.3999    1   2   5        12
                67.95          8.95        1.3795    3   0   0         6
                72.29          3.36        1.3071    0   0  12         2
                76.16          2.69        1.2500    0   2  10         6
                78.17          4.31        1.2228    1   2   8        12
                84.49          2.72        1.1467    1   1  12        12
                88.22          2.98        1.1076    2   1  10        12
                88.82          1.95        1.1016    1   3   4        12
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.