Petersite-(Ce)
      Morrison S M, Domanik K J, Yang H, Downs R T
      The Canadian Mineralogist 54 (2016) 1505-1511
      Petersite-(Ce), Cu2+6Ce(PO4)3(OH)6*3H2O, a new mixite group mineral
      from Yavapai County, Arizona, USA
      Locality: Yavapai County, Arizona, USA
      _database_code_amcsd 0020978

      CELL PARAMETERS:   13.2197  13.2197   5.8591   90.000   90.000  120.000
      SPACE GROUP: P6_3/m    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    886.757
      Density (g/cm3):      3.441
      MAX. ABS. INTENSITY / VOLUME**2:      70.19150364    
      RIR:      6.642
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                 7.72        100.00       11.4486    1   0   0         6
                20.25          1.24        4.3845    1   1   1        12
                20.52         30.71        4.3272    1   2   0         6
                20.52          3.00        4.3272    2   1   0         6
                21.70          6.32        4.0945    2   0   1        12
                23.31          6.52        3.8162    3   0   0         6
                25.59          9.68        3.4808    1   2   1        12
                25.59          3.49        3.4808    2   1   1        12
                26.98          3.65        3.3049    2   2   0         6
                28.10          7.28        3.1753    3   1   0         6
                31.07          4.58        2.8786    2   2   1        12
                31.25         12.49        2.8621    4   0   0         6
                32.06          1.88        2.7917    1   3   1        12
                32.06          2.41        2.7917    3   1   1        12
                33.46          4.39        2.6783    1   1   2        12
                34.14          6.33        2.6265    2   3   0         6
                34.14          3.64        2.6265    3   2   0         6
                34.89          1.39        2.5717    4   0   1        12
                35.95         11.99        2.4983    4   1   0         6
                37.06         20.00        2.4259    1   2   2        12
                37.06          7.40        2.4259    2   1   2        12
                37.53          2.05        2.3967    2   3   1        12
                41.18          4.29        2.1923    2   2   2        12
                41.75          1.60        2.1636    2   4   0         6
                41.96          1.20        2.1531    1   3   2        12
                44.04          2.80        2.0562    5   1   0         6
                44.24          2.60        2.0473    4   0   2        12
                44.65          1.08        2.0296    2   4   1        12
                46.43          2.79        1.9556    2   3   2        12
                46.43          4.22        1.9556    3   2   2        12
                48.36          1.24        1.8821    4   3   0         6
                50.96          1.12        1.7920    4   3   1        12
                51.33          1.18        1.7801    1   2   3        12
                51.93          5.31        1.7609    3   3   2        12
                52.41          1.32        1.7459    1   6   0         6
                52.59          5.61        1.7404    2   4   2        12
                52.59          3.00        1.7404    4   2   2        12
                54.52          6.25        1.6830    1   5   2        12
                55.62          3.48        1.6525    4   4   0         6
                56.25          1.30        1.6355    3   5   0         6
                57.65          3.81        1.5989    6   0   2        12
                58.27          1.10        1.5835    3   4   2        12
                59.48          2.56        1.5540    5   2   2        12
                61.11          2.41        1.5164    7   1   0         6
                61.87          2.76        1.4998    6   1   2        12
                63.51          2.83        1.4648    0   0   4         2
                64.77          3.39        1.4393    4   4   2        12
                66.90          1.27        1.3987    2   7   0         6
                67.51          1.78        1.3874    1   2   4        12
                72.49          1.26        1.3039    4   0   4        12
                75.19          2.12        1.2636    4   1   4        12
                75.29          1.76        1.2622    2   7   2        12
                79.55          1.07        1.2050    5   5   2        12
                89.39          1.23        1.0961    4   4   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.