Graphite
      Fayos J
      Journal of Solid State Chemistry 148 (1999) 278-285
      Possible 3D carbon structures as progressive intermediates in graphite
      to diamond phase transition
      Note: mathematical model
      _database_code_amcsd 0013978

      CELL PARAMETERS:    2.4610   2.4610   6.7080   90.000   90.000  120.000
      SPACE GROUP: P6_3mc    
      X-RAY WAVELENGTH:     1.541838
      Cell Volume:     35.184
      Density (g/cm3):      2.267
      MAX. ABS. INTENSITY / VOLUME**2:      16.68754802    
      RIR:      2.397
      RIR based on corundum from Acta Crystallographica A38 (1982) 733-739
               2-THETA      INTENSITY    D-SPACING   H   K   L   Multiplicity
                26.58        100.00        3.3540    0   0   2         1
                42.41          3.47        2.1313    1   0   0         6
                44.61         17.00        2.0312    1   0   1         6
                50.75          3.38        1.7988    1   0   2         6
                54.74          6.54        1.6770    0   0   4         1
                59.96          5.11        1.5427    1   0   3         6
                77.59          1.78        1.2305    1   1   0         6
                83.72          2.86        1.1552    1   1   2         6
                85.53          1.53        1.1354    1   0   5         6
                87.19          1.29        1.1180    0   0   6         1
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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.