Color: silvery-white
State at 25°C: solid
Density (g/cm3): 8.57
Hardness (Mohs): No data
Melting Point (K): 2741.2
Boiling Point (K): 5031
Heat of Fusion (kJ/mol): 27.2
Heat of Vaporization (kJ/mol): 695
Heat of Atomization (kJ/mol): 726
Therm. Conductivity (J/m sec K): 53.7
Elec. Conductivity (1/mohm cm): 80
Abundance, Solar System: -0.156
Abundance, Earth's Crust: 1.3
Pure Cost ($/100g): $ 18.00
Bulk Cost ($/100g):  
Source: columbite (oxide)