Black salt
| Color | Pinkish-grey or brownish-grey |
| Odor | Pungent |
| Taste | Slightly sulfuric and salty |
| Density | 2.165 g/cm³ |
| Solubility in water | Insoluble |
| Crystal structure | Cubic |
| Ash content | < 35% |
| Particle size | 20-60 mesh |
| Shelf life | 12 months |
| Packaging | Plastic or glass jar |