Color: black
State at 25°C: solid
Density (g/cm3): 2.266
Hardness (Mohs): 0.8
Melting Point (K): 3823.2
Boiling Point (K): No data 
Heat of Fusion (kJ/mol): No data
Heat of Vaporization (kJ/mol): No data
Heat of Atomization (kJ/mol): 717
Therm. Conductivity (J/m sec K): 1.59
Elec. Conductivity (1/mohm cm): 0.727
Abundance, Solar System: 7.004
Abundance, Earth's Crust: 2.3
Pure Cost ($/100g): $ 2.40
Bulk Cost ($/100g):  
Source: Coal, Petroleum, Natural gas