Rhodochrosite
      Maslen E N, Streltsov V A, Streltsova N R, Ishizawa N
      Acta Crystallographica B51 (1995) 929-939
      Electron density and optical anisotropy in rhombohedral carbonates.
      III. Synchrotron X-ray studies of CaCO3, MgCO3 and MnCO3
      Sample: Synchrotron data
      _database_code_amcsd 0009891

      CELL PARAMETERS:    4.7720   4.7720  15.6370   90.000   90.000  120.000
      SPACE GROUP: R-3c      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    308.379
      Density (g/cm3):      3.713
      MAX. ABS. INTENSITY / VOLUME**2:      42.09334066    
      RIR:      3.691
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                24.36         30.06        3.6537    0   1   2         6
                31.50        100.00        2.8400    1   0   4         6
                37.70         19.96        2.3860    1   1   0         6
                41.63         16.88        2.1695    1   1   3        12
                45.40         18.92        1.9977    2   0   2         6
                49.92          9.71        1.8268    0   2   4         6
                51.74         18.93        1.7670    0   1   8         6
                51.96         26.97        1.7599    1   1   6        12
                59.47          2.16        1.5543    2   1   1        12
                60.44         12.27        1.5317    1   2   2        12
                63.62          2.13        1.4625    1   0  10         6
                64.21          8.92        1.4505    2   1   4        12
                65.76          3.68        1.4200    2   0   8         6
                66.58          2.31        1.4045    1   1   9        12
                66.96          1.27        1.3974    1   2   5        12
                68.06          9.17        1.3776    3   0   0         6
                72.54          3.38        1.3031    0   0  12         2
                76.38          2.80        1.2469    0   2  10         6
                78.36          4.44        1.2202    1   2   8        12
                84.77          2.78        1.1436    1   1  12        12
                88.47          3.14        1.1051    2   1  10        12
                89.00          2.00        1.0999    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.