Lawrencite
      Herpin A, Meriel P
      Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences 245 (1957) 650-653
      Etude par diffraction de neutrons a 4.2 K de la structure antiferromagnetique de Cl2Fe
      Note: T = 4.2 K
      Locality: synthetic
      _database_code_amcsd 0018471

      CELL PARAMETERS:    3.5800   3.5800  17.5400   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    194.682
      Density (g/cm3):      3.243
      MAX. ABS. INTENSITY / VOLUME**2:      49.14962483    
      RIR:      4.935
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.15         62.81        5.8467    0   0   3         2
                29.25         36.23        3.0530    1   0   1         6
                30.58          1.47        2.9231    0   1   2         6
                35.46        100.00        2.5315    1   0   4         6
                38.76         16.03        2.3231    0   1   5         6
                46.60          2.97        1.9489    0   0   9         2
                46.60          8.92        1.9488    1   0   7         6
                51.02         29.51        1.7901    0   1   8         6
                51.02         29.50        1.7900    1   1   0         6
                53.54         11.10        1.7116    1   1   3        12
                59.90          3.72        1.5442    0   2   1         6
                63.66          4.42        1.4617    0   0  12         2
                63.67         13.26        1.4615    0   2   4         6
                65.87          2.63        1.4180    0   1  11         6
                65.87          2.63        1.4179    2   0   5         6
                71.57          3.90        1.3183    1   1   9        12
                71.58          1.95        1.3183    0   2   7         6
                75.04          7.44        1.2658    2   0   8         6
                77.09          1.50        1.2372    1   0  13         6
                85.83          9.86        1.1322    1   1  12        12
                85.84          3.29        1.1321    2   1   4        12
                87.83          1.00        1.1115    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.