| Answer | Crossword Clue |
|---|---|
| lithifying | Transform (a sediment or other material) into stone |
| lithified | Transform (a sediment or other material) into stone |
| lithifies | Transform (a sediment or other material) into stone |
| grindstone | A thick disk of stone or other abrasive material mounted so as to revolve, used for grinding, sharpening, or polishing metal objects |
| grindstones | A thick disk of stone or other abrasive material mounted so as to revolve, used for grinding, sharpening, or polishing metal objects |
| concretes | A heavy, rough building material made from a mixture of broken stone or gravel, sand, cement, and water, that can be spread or poured into molds and that forms a stonelike mass on hardening |
