Color: | gray-black |
State at 25°C: | solid |
Density (g/cm3): | 2.336 |
Hardness (Mohs): | 7 |
Melting Point (K): | 1683.2 |
Boiling Point (K): | 3553 |
Heat of Fusion (kJ/mol): | 39.6 |
Heat of Vaporization (kJ/mol): | 383 |
Heat of Atomization (kJ/mol): | 452 |
Therm. Conductivity (J/m sec K): | 149 |
Elec. Conductivity (1/mohm cm): | 0.012 |
Abundance, Solar System: | 6.000 |
Abundance, Earth's Crust: | 5.5 |
Pure Cost ($/100g): | $ 5.40 |
Bulk Cost ($/100g): | $ 0.14 |
Source: | Quartz (oxide) |