Fe Na O2
      Goldsztaub M
      Bulletin de la Societe Francaise de Mineralogie 58 (1935) 6-6
      Etude de quelques derives de l'oxyde ferrique (FeO*OH, FeO^2^Na, FeOCl)
      determination de leurs structures.
      _cod_database_code 1010644
      _database_code_amcsd 0017525

      CELL PARAMETERS:    5.5900   5.5900   5.5900   31.330   31.330   31.330
      SPACE GROUP: R-3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     41.917
      Density (g/cm3):      4.390
      MAX. ABS. INTENSITY / VOLUME**2:      50.46037454    
      RIR:      3.743
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                16.69         94.49        5.3114    1   1   1         2
                33.75         23.89        2.6557    2   2   2         2
                34.77         12.88        2.5798    1   0   0         6
                36.16         36.01        2.4840    1   1   0         6
                41.31        100.00        2.1857    2   1   1         6
                44.84          1.01        2.0212    2   2   1         6
                61.43         26.43        1.5094    0  -1   1         6
                64.14          9.91        1.4519    2   1   0        12
                72.56          1.42        1.3028    1  -1   1         6
                73.40          3.81        1.2899    2   0   0         6
                76.74          9.84        1.2420    2   2   0         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.