Zeco DMA 340/390 North American Asphaltum | |
| Melting point | 340/390 deg F |
|---|---|
| Colour of powder | Black/Brown |
| Specific gravity | 1.05 - 1.10 at 77 deg F |
| Lustre fracture | Very brilliant |
| Structure | Semi cubical to cubical |
| Sulphur | Nil |
| Particle size | Various, also pulverized |
| Ash | 0.5% |
| Penetration | 0 |
| Fixed carbon | 20.3% |