Suessite
      Keil K, Berkley J L, Fuchs J H
      American Mineralogist 67 (1982) 126-131
      Suessite, Fe3Si: a new mineral in the North Haig ureilite
      Locality: North Haig ureilite, meteorite, Western Australia
      _database_code_amcsd 0000860

      CELL PARAMETERS:    2.8410   2.8410   2.8410   90.000   90.000   90.000
      SPACE GROUP: Im3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     22.931
      Density (g/cm3):      7.092
      MAX. ABS. INTENSITY / VOLUME**2:      238.8646806    
      RIR:     10.966
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                45.13        100.00        2.0089    1   1   0        12
                65.74         13.61        1.4205    2   0   0         6
                83.32         24.42        1.1598    2   1   1        24
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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.