Guidottiite
      Wahle M W, Bujnowski T J, Guggenheim S, Kogure T
      Clays and Clay Minerals 58 (2010) 364-376
      Guidottiite, the Mn-analogue of cronstedtite: A new serpentine-group
      mineral from South Africa
      Locality: N'chwaning 2 mine, Kalahari manganese field, South Africa
      _database_code_amcsd 0018323

      CELL PARAMETERS:    5.5472   5.5472  14.2960   90.000   90.000  120.000
      SPACE GROUP: P6_3      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    380.972
      Density (g/cm3):      3.296
      MAX. ABS. INTENSITY / VOLUME**2:      20.51206736    
      RIR:      2.026
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                12.38        100.00        7.1480    0   0   2         1
                18.47         13.97        4.8040    1   0   0         6
                19.49         41.49        4.5538    1   0   1         6
                22.30         16.69        3.9872    1   0   2         6
                24.91         74.03        3.5740    0   0   4         1
                26.34         16.78        3.3832    1   0   3         6
                31.19          5.82        2.8675    1   0   4         6
                32.28          1.07        2.7736    1   1   0         6
                32.89         39.02        2.7228    1   1   1         6
                34.69         95.46        2.5858    1   1   2         6
                36.57          5.28        2.4570    1   0   5         6
                37.52         42.37        2.3971    1   1   3         6
                37.76          4.65        2.3827    0   0   6         1
                41.20         13.14        2.1912    1   1   4         6
                42.13          1.27        2.1449    2   0   3         6
                42.34          1.79        2.1345    1   0   6         6
                45.50          1.07        1.9936    2   0   4         6
                45.57         40.42        1.9908    1   1   5         6
                48.43          1.52        1.8795    1   0   7         6
                49.56          1.68        1.8391    2   0   5         6
                50.25          1.07        1.8157    2   1   0         6
                50.50         13.58        1.8073    1   1   6         6
                50.68          2.68        1.8013    1   2   1         6
                50.68          1.81        1.8013    2   1   1         6
                51.11          1.79        1.7870    0   0   8         1
                51.96          1.62        1.7599    2   1   2         6
                54.05          1.93        1.6967    1   2   3         6
                54.05          1.45        1.6967    2   1   3         6
                55.91         19.72        1.6446    1   1   7         6
                56.88          1.06        1.6188    2   1   4         6
                57.56         33.47        1.6013    3   0   0         6
                59.12         13.12        1.5626    3   0   2         6
                59.40          1.40        1.5559    2   0   7         6
                60.39          1.05        1.5328    1   2   5         6
                61.75         18.31        1.5022    1   1   8         6
                63.68         12.58        1.4614    3   0   4         6
                65.27          3.25        1.4296    0   0  10         1
                67.91          3.45        1.3803    2   2   1         6
                68.01          8.98        1.3784    1   1   9         6
                68.98         14.14        1.3614    2   2   2         6
                70.75          4.80        1.3316    2   2   3         6
                70.91          5.14        1.3291    3   0   6         6
                74.70          1.63        1.2707    1   1  10         6
                76.32          5.38        1.2478    2   2   5         6
                80.06          4.55        1.1986    2   2   6         6
                81.85          2.77        1.1768    1   1  11         6
                84.43          4.31        1.1473    2   2   7         6
                89.44          4.28        1.0956    2   2   8         6
                89.54          2.55        1.0946    1   1  12         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.