Lonsdaleite 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, phase: diamond(hex) _database_code_amcsd 0013990 CELL PARAMETERS: 2.5200 2.5200 4.1200 90.000 90.000 120.000 SPACE GROUP: P6_3/mmc X-RAY WAVELENGTH: 1.541838 Cell Volume: 22.658 Density (g/cm3): 3.520 MAX. ABS. INTENSITY / VOLUME**2: 6.154320642 RIR: 0.569 RIR based on corundum from Acta Crystallographica A38 (1982) 733-739 2-THETA INTENSITY D-SPACING H K L Multiplicity 41.37 100.00 2.1824 1 0 0 6 43.95 52.42 2.0600 0 0 2 2 47.12 52.16 1.9285 1 0 1 12 61.94 19.57 1.4980 1 0 2 12 75.45 38.11 1.2600 1 1 0 6 83.10 36.66 1.1623 1 0 3 12 89.90 5.97 1.0912 2 0 0 6 ================================================================================ XPOW Copyright 1993 Bob Downs, Ranjini Swaminathan and Kurt Bartelmehs For reference, see Downs et al. (1993) American Mineralogist 78, 1104-1107.