Arisite-(La)
      Piilonen P C, McDonald A M, Grice J D, Cooper M A, Kolitsch U,
      Rowe R, Gault R A, Poirier G
      Mineralogical Magazine 74 (2010) 257-268
      Arisite-(La), a new REE-fluorcarbonate mineral from the Aris phonolite (Namibia),
      with descriptions of the crystal structures of arisite-(La) and arisite-(Ce)
      Locality: Aris, Namibia
      Note: x-coordinate of O1 adjusted to special position
      _database_code_amcsd 0014599

      CELL PARAMETERS:    5.1131   5.1131   8.6759   90.000   90.000  120.000
      SPACE GROUP: P-6m2     
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    196.433
      Density (g/cm3):      4.050
      MAX. ABS. INTENSITY / VOLUME**2:      65.41045679    
      RIR:      5.259
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                20.05        100.00        4.4281    1   0   0         3
                20.47         42.75        4.3380    0   0   2         2
                22.54          7.62        3.9441    1   0   1         6
                28.81         78.87        3.0988    1   0   2         6
                35.10         40.81        2.5566    1   1   0         6
                37.13         21.18        2.4213    1   0   3         6
                40.75         32.66        2.2140    2   0   0         3
                40.98         26.75        2.2025    1   1   2        12
                41.64         10.85        2.1690    0   0   4         2
                42.12          1.26        2.1453    2   0   1         6
                46.02         45.53        1.9720    2   0   2         6
                46.63         18.39        1.9479    1   0   4         6
                47.47         11.01        1.9154    1   1   3        12
                52.02          3.04        1.7580    2   0   3         6
                54.85         14.54        1.6737    2   1   0         6
                55.56         13.69        1.6539    1   1   4        12
                55.95          1.57        1.6434    2   1   1        12
                57.00          9.73        1.6156    1   0   5         6
                59.17         16.92        1.5615    2   1   2        12
                59.68          8.59        1.5494    2   0   4         6
                62.97          6.05        1.4760    3   0   0         3
                64.31          5.06        1.4486    2   1   3        12
                64.95          2.84        1.4357    1   1   5        12
                66.97          5.65        1.3973    3   0   2         6
                68.23          3.39        1.3746    1   0   6         6
                68.73          1.34        1.3657    2   0   5         6
                71.16          9.72        1.3250    2   1   4        12
                71.80          2.75        1.3147    3   0   3         6
                74.18          6.85        1.2783    2   2   0         6
                75.54          1.47        1.2586    1   1   6        12
                77.76          4.54        1.2281    3   1   0         6
                77.91          4.52        1.2261    2   2   2        12
                78.36          4.19        1.2203    3   0   4         6
                79.10          1.77        1.2107    2   0   6         6
                79.58          6.62        1.2046    2   1   5        12
                80.47          4.39        1.1935    1   0   7         6
                81.44          7.67        1.1817    3   1   2        12
                86.00          2.06        1.1304    3   1   3        12
                86.58          1.34        1.1243    3   0   5         6
                87.46          3.93        1.1153    1   1   7        12
                88.28          2.24        1.1070    4   0   0         3
                88.86          4.33        1.1013    2   2   4        12
                89.59          2.81        1.0942    2   1   6        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.