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 = 1.04 kbar
      _database_code_amcsd 0018598

      CELL PARAMETERS:    3.5980   3.5980  17.4810   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    195.983
      Density (g/cm3):      3.221
      MAX. ABS. INTENSITY / VOLUME**2:      37.79255418    
      RIR:      3.820
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.21        100.00        5.8270    0   0   3         2
                30.46         96.37        2.9350    0   1   2         6
                35.38          2.11        2.5371    1   0   4         6
                38.71         86.92        2.3262    0   1   5         6
                46.61         36.48        1.9487    1   0   7         6
                46.77          1.67        1.9423    0   0   9         2
                50.75         36.28        1.7990    1   1   0         6
                51.05          3.86        1.7891    0   1   8         6
                53.29         16.53        1.7189    1   1   3        12
                60.35          9.51        1.5338    2   0   2         6
                60.75         13.85        1.5246    1   0  10         6
                63.90          4.72        1.4568    0   0  12         2
                65.60         12.89        1.4231    2   0   5         6
                71.35          7.49        1.3218    0   2   7         6
                71.48          2.12        1.3199    1   1   9        12
                82.68          2.01        1.1672    1   2   2        12
                82.83          1.01        1.1654    0   0  15         2
                83.03          4.46        1.1631    0   2  10         6
                83.38          1.55        1.1590    0   1  14         6
                85.84         10.02        1.1321    1   1  12        12
                87.38          3.19        1.1161    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.