Crocoite
      Knight K S
      Mineralogical Magazine 64 (2000) 291-300
      A high temperature structural phase transition in crocoite (PbCrO4) at 1068 K:
      crystal structure refinement at 1073 K and thermal expansion tensor determination at 1000 K
      Sample: the high temperature form at T = 1073 K
      Locality: Dundas, Tasmania
      _database_code_amcsd 0014540

      CELL PARAMETERS:    8.7986   5.7342   7.2740   90.000   90.000   90.000
      SPACE GROUP: Pnma      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    366.997
      Density (g/cm3):      5.849
      MAX. ABS. INTENSITY / VOLUME**2:      59.76380735    
      RIR:      3.327
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.81          2.14        5.6062    1   0   1         4
                19.71         59.39        4.5032    0   1   1         4
                20.18         16.02        4.3993    2   0   0         2
                22.18         51.74        4.0087    1   1   1         8
                23.63         18.33        3.7644    2   0   1         4
                24.48         29.81        3.6370    0   0   2         2
                25.52        100.00        3.4904    2   1   0         4
                26.52         63.48        3.3612    1   0   2         4
                28.36         92.01        3.1469    2   1   1         8
                30.84         47.95        2.8997    1   1   2         8
                31.20         47.02        2.8671    0   2   0         2
                32.93          8.52        2.7201    3   0   1         4
                35.65         15.17        2.5183    2   1   2         8
                36.56          1.76        2.4576    3   1   1         8
                37.44          7.65        2.4020    2   2   0         4
                38.51          1.52        2.3375    1   0   3         4
                39.51         14.21        2.2809    2   2   1         8
                40.04          4.64        2.2516    0   2   2         4
                41.39         28.44        2.1813    1   2   2         8
                41.73         23.55        2.1646    1   1   3         8
                42.62         17.96        2.1211    3   1   2         8
                42.96         21.88        2.1055    4   0   1         4
                44.09          6.33        2.0537    4   1   0         4
                45.99          4.34        1.9733    3   2   1         8
                48.73          9.17        1.8687    3   0   3         4
                49.29          1.71        1.8486    0   3   1         4
                50.17          1.09        1.8185    0   0   4         2
                50.44          1.64        1.8091    1   3   1         8
                51.30          3.41        1.7809    1   0   4         4
                51.43          3.70        1.7768    3   1   3         8
                52.18          4.45        1.7531    2   3   0         4
                53.79          5.01        1.7043    2   3   1         8
                53.91          3.24        1.7007    1   1   4         8
                54.04          8.63        1.6970    4   2   1         8
                55.29          3.42        1.6615    1   3   2         8
                56.11          1.10        1.6390    5   1   1         8
                58.44          1.15        1.5792    2   3   2         8
                59.00          6.09        1.5656    3   2   3         8
                60.65          1.44        1.5269    5   1   2         8
                61.27          3.01        1.5128    1   2   4         8
                62.80          1.79        1.4797    1   3   3         8
                63.47          1.45        1.4656    3   3   2         8
                65.06          1.52        1.4336    0   4   0         2
                67.13          1.73        1.3944    6   1   1         8
                67.80          1.55        1.3822    5   1   3         8
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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.