Related Clues:
- Old tablet material
- Export of 57-Across
- Quarry material
- Sculpting material
- Funk's Sly ___
- Baking __
- What Medusa turned people to
- Crystallised limestone
- Hard crystalline metamorphic rock
- Hard crystalline limestone, can be polished
- Hard crystalline limestone
- Hard crystalline rock
- Unit of weight
- Hard, crystalline rock
- Small ball of glass used in game