Lawrencite
      Vettier C, Yelon W B
      Journal of Physics and Chemistry of Solids 36 (1975) 401-405
      The structure of FeCl2 at high pressures
      Note: P = 5.70 kbar
      _database_code_amcsd 0018600

      CELL PARAMETERS:    3.5890   3.5890  17.2600   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    192.539
      Density (g/cm3):      3.279
      MAX. ABS. INTENSITY / VOLUME**2:      38.32149918    
      RIR:      3.805
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.40         92.31        5.7533    0   0   3         2
                30.57        100.00        2.9243    0   1   2         6
                35.60          2.63        2.5220    1   0   4         6
                38.99         84.86        2.3098    0   1   5         6
                47.04         38.11        1.9317    1   0   7         6
                47.40          2.10        1.9178    0   0   9         2
                50.88         36.74        1.7945    1   1   0         6
                51.57          2.83        1.7724    0   1   8         6
                53.49         15.44        1.7131    1   1   3        12
                60.54          9.80        1.5295    2   0   2         6
                61.45         12.37        1.5090    1   0  10         6
                64.82          4.77        1.4383    0   0  12         2
                65.91         12.67        1.4171    2   0   5         6
                71.80          7.90        1.3147    0   2   7         6
                72.08          2.62        1.3103    1   1   9        12
                82.95          2.06        1.1640    1   2   2        12
                83.75          4.04        1.1549    0   2  10         6
                84.55          1.94        1.1460    0   1  14         6
                86.77         10.37        1.1223    1   1  12        12
                87.77          3.15        1.1121    1   2   5        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.