Ringwoodite
      Smyth J R, Holl C M, Frost D J, Jacobsen S D, Langenhorst F, McCammon C A
      American Mineralogist 88 (2003) 1402-1407
      Structural systematics of hydrous ringwoodite and water in Earth's interior
      Sample: SZ0104
      _database_code_amcsd 0003164

      CELL PARAMETERS:    8.1053   8.1053   8.1053   90.000   90.000   90.000
      SPACE GROUP: Fd3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    532.485
      Density (g/cm3):      3.656
      MAX. ABS. INTENSITY / VOLUME**2:      25.93560006    
      RIR:      2.310
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                18.96          1.13        4.6796    1   1   1         8
                31.21         26.27        2.8657    2   2   0        12
                36.78        100.00        2.4438    3   1   1        24
                44.72         45.53        2.0263    4   0   0         6
                48.99          3.94        1.8595    3   3   1        24
                55.54          8.31        1.6545    4   2   2        24
                59.24         10.14        1.5599    3   3   3         8
                59.24         14.78        1.5599    5   1   1        24
                65.10         59.63        1.4328    4   4   0        12
                73.96          3.20        1.2816    6   2   0        24
                77.17          8.98        1.2360    5   3   3        24
                82.44          5.29        1.1699    4   4   4         8
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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.