Zeco 11-A North American Asphaltum (Gilsonite) | |
| Melting point | 300/315 deg F |
|---|---|
| Colour of powder | Brown |
| Specific gravity | 1.05 - 1.10 at 77 deg F |
| Lustre fracture | Bright |
| Structure | Conchodial |
| Sulphur | Nil |
| Particle size | Various, also pulverized |
| Ash | Max. 0.8%. Typical 0.4% - 0.6% |
| Penetration | 0 |
| Fixed carbon | 10 - 15% |