Gupeite
      Yu Z
      Acta Petrologica Mineralogica et Analytica 3 (1984) 231-238
      Two new minerals gupeiite and xifengite in cosmic dusts from Yanshan
      Locality: cosmic dust found in placers, Yanshan, China
      _database_code_amcsd 0019594

      CELL PARAMETERS:    5.6700   5.6700   5.6700   90.000   90.000   90.000
      SPACE GROUP: Fm3m      
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:    182.284
      Density (g/cm3):      7.172
      MAX. ABS. INTENSITY / VOLUME**2:      241.7639295    
      RIR:     10.976
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                27.24          6.35        3.2736    1   1   1         8
                31.56          3.24        2.8350    2   0   0         6
                45.23        100.00        2.0046    2   2   0        12
                53.61          2.37        1.7096    3   1   1        24
                65.89         13.59        1.4175    4   0   0         6
                83.53         24.39        1.1574    4   2   2        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.