Zaccagnaite
      Lozano R P, Rossi C, La Iglesia A, Matesanz E
      American Mineralogist 97 (2012) 513-523
      Zaccagnaite-3R, a new Zn-Al hydrotalcite polytype
      from El Soplao cave (Cantabria, Spain)
      Note: polytype zaccagnaite-3R
      Locality: El Soplao cave, Cantabria, Spain
      _database_code_amcsd 0018810

      CELL PARAMETERS:    3.0662   3.0662  22.6164   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    184.138
      Density (g/cm3):      2.847
      MAX. ABS. INTENSITY / VOLUME**2:      48.43686741    
      RIR:      5.539
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                11.74        100.00        7.5388    0   0   3         2
                23.60         33.35        3.7694    0   0   6         2
                33.99          2.19        2.6373    1   0   1         6
                34.70         30.08        2.5851    0   1   2         6
                37.42          5.01        2.4035    1   0   4         6
                39.35         22.87        2.2899    0   1   5         6
                44.15          2.46        2.0514    1   0   7         6
                46.95         21.49        1.9355    0   1   8         6
                48.29          1.64        1.8847    0   0  12         2
                53.20          7.34        1.7218    1   0  10         6
                56.62          5.08        1.6257    0   1  11         6
                60.38          7.28        1.5331    1   1   0         6
                61.75          9.65        1.5023    1   1   3        12
                63.98          3.74        1.4552    1   0  13         6
                65.76          4.08        1.4201    1   1   6        12
                67.92          2.25        1.3801    0   1  14         6
                71.55          1.47        1.3186    2   0   2         6
                72.18          1.28        1.3088    1   1   9        12
                74.48          2.76        1.2739    2   0   5         6
                76.32          3.08        1.2477    1   0  16         6
                79.81          1.97        1.2018    2   0   8         6
                87.45          1.31        1.1154    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.