| Answer | Crossword Clue |
|---|---|
| AGATE | Type of quartz |
| ONYX | Type of quartz |
| AGATE | Type of quartz. |
| SARD | Type of quartz |
| AGATINE | Like a type of quartz. |
| AGATIZE | Convert into a type of quartz. |
| chalcedonies | A microcrystalline type of quartz occurring in several different forms, including onyx, agate, and jasper |
| conchoidal | Denoting a type of fracture in a solid (such as flint or quartz) that results in a smooth rounded surface resembling the shape of a scallop shell |
| ONYX | Quartz type |
| JASPER | Quartz type |
| AGATE | Quartz type |
