| Answer | Crossword Clue |
|---|---|
| FLINT | Hard stone used for striking fire |
| EMERY | Hard stone used for grinding. |
| jades | hard green stone, used for carvings and jewelry |
| jadelike | hard green stone, used for carvings and jewelry |
| jade | hard green stone, used for carvings and jewelry |
| firestone | fire-resisting stone, esp. a kind of sandstone used in fireplaces, furnaces, etc. |
