| Clue | Source | Date |
|---|---|---|
| Veins, e.g. | New York Times | 20 Dec 2024 |
| Rock groups? | New York Times | 19 Jun 2015 |
| Rock groups? | ||
| Some natural resources | ||
| Valuable veins | ||
| Ore sources | ||
| Places to find some gems | ||
| Prospectors goal | ||
| Miners' finds | ||
| Miners' finds | ||
| Gold and silver | ||
| Ore sources | ||
| Lodes |