Lawrencite
      Wilkinson M K, Cable J W, Wollan E O, Koehler W C
      Physical Review 113 (1959) 497-507
      Neutron diffraction investigations of the magnetic ordering in FeBr2,
      CoBr2, FeCl2, and CoCl2
      Locality: synthetic
      _database_code_amcsd 0018640

      CELL PARAMETERS:    3.6030   3.6030  17.5360   90.000   90.000  120.000
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    197.147
      Density (g/cm3):      3.202
      MAX. ABS. INTENSITY / VOLUME**2:      37.47342127    
      RIR:      3.810
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                15.16         97.96        5.8453    0   0   3         2
                30.41        100.00        2.9397    0   1   2         6
                35.31          2.44        2.5421    1   0   4         6
                38.62         89.73        2.3312    0   1   5         6
                46.49         39.66        1.9535    1   0   7         6
                46.61          2.01        1.9484    0   0   9         2
                50.67         38.67        1.8015    1   1   0         6
                50.91          3.70        1.7936    0   1   8         6
                53.20         17.26        1.7216    1   1   3        12
                60.25         10.51        1.5360    2   0   2         6
                60.57         14.66        1.5287    1   0  10         6
                63.68          5.35        1.4613    0   0  12         2
                65.48         14.15        1.4255    2   0   5         6
                71.20          8.65        1.3243    0   2   7         6
                71.30          2.70        1.3228    1   1   9        12
                82.51          1.08        1.1691    0   0  15         2
                82.53          2.36        1.1688    1   2   2        12
                82.81          5.01        1.1656    0   2  10         6
                83.09          2.05        1.1624    0   1  14         6
                85.58         12.01        1.1349    1   1  12        12
                87.20          3.71        1.1178    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.