Stichtite
      Mills S J, Whitfield P S, Wilson S A, Woodhouse J N, Dipple G M,
      Raudsepp M, Francis C A
      American Mineralogist 96 (2011) 179-187
      The crystal structure of stichtite, re-examination of barbertonite, and the
      nature of polytypism in MgCr hydrotalcites
      Note: 3R1 polytype of stichtite
      Locality: Tasmania, Australia
      _database_code_amcsd 0018330

      CELL PARAMETERS:    3.0955   3.0955  23.5042   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    195.049
      Density (g/cm3):      2.148
      MAX. ABS. INTENSITY / VOLUME**2:      25.03041935    
      RIR:      3.794
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.29        100.00        7.8347    0   0   3         2
                22.70         39.24        3.9174    0   0   6         2
                33.65          2.72        2.6635    1   0   1         6
                34.31          1.23        2.6137    0   1   2         6
                36.85         37.78        2.4390    1   0   4         6
                43.18         19.66        2.0950    1   0   7         6
                45.82          3.40        1.9803    0   1   8         6
                46.36          1.06        1.9587    0   0  12         2
                51.72         17.00        1.7673    1   0  10         6
                54.95          2.41        1.6709    0   1  11         6
                59.75          8.77        1.5478    1   1   0         6
                61.02         13.09        1.5184    1   1   3        12
                61.90          2.69        1.4990    1   0  13         6
                64.76          3.69        1.4395    1   1   6        12
                65.61          6.07        1.4229    0   1  14         6
                70.35          1.32        1.3382    0   2   1         6
                72.30          1.92        1.3068    0   2   4         6
                73.51          1.31        1.2883    1   0  16         6
                76.53          4.09        1.2449    0   2   7         6
                77.71          2.47        1.2288    0   1  17         6
                82.92          1.96        1.1644    0   2  10         6
                85.52          1.26        1.1355    2   0  11         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.