Hapkeite
      Anand M, Taylor L A, Nazarov M A, Shu J, Mao H K, Hemley R J
      Proceedings of the National Academy of Sciences 101 (2005) 6847-6851
      Space weathering on airless planetary bodies: Clues from the lunar mineral hapkeite
      Locality: lunar meteorite Dhofar 280 from Oman
      _database_code_amcsd 0019759

      CELL PARAMETERS:    2.8310   2.8310   2.8310   90.000   90.000   90.000
      SPACE GROUP: Pm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     22.689
      Density (g/cm3):      6.853
      MAX. ABS. INTENSITY / VOLUME**2:      219.1337991    
      RIR:     10.412
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                31.60          5.86        2.8310    1   0   0         6
                45.30        100.00        2.0018    1   1   0        12
                56.28          1.18        1.6345    1   1   1         8
                66.00         13.68        1.4155    2   0   0         6
                75.02          1.08        1.2661    2   1   0        24
                83.68         24.76        1.1558    2   1   1        24
================================================================================
       XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs
  For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.