Related Clues:
- Tough elastic wood
- Fireplace leftover
- Cigar bit
- Hearth dust
- Archaeological fragment
- Hearth particles
- Andiron residue
- Mount St. Helens residue
- Kindling, eventually
- Word with can or Wednesday
- Forest fire obscurer
- Volcanic discharge
- Grey shade
- Black layer found in Morbier cheese
- Cloud from some volcanos