Gilsonite
Physical Properties
| Color in Mass | Black |
| Color in Streak or Powder | Brown |
| Softening Point °C | 160-200 |
| Moisture Content WT% | 1-3 |
| Specific Gravity@ 25° C | 1.04 – 1.06 |
| Hardness (Moh, s Scale) | 2 |
| Penetration | 0 |
Volatility, Weight % |
‹3 |
| Flash Point °C, C.O.C | ‹300 |
| Solubility in T.C.E., Wt% | ‹99 |
| Solubility in CS2, Wt% | ‹99.5 |
| Volatile Matter | 55-70 |
| Ash | 5-10 |
| Fixed Carbon | 25-40 |
Element Analysis
| C | 80-85 |
| H | 7-10 |
| N | 0.5-1.5 |
| S | 2-6 |
| O | 1-2 |
| Trace Element | ‹0.2 |
