| Clue | Source | Date |
|---|---|---|
| Mineral of which Derbyshire Blue John is an example (9) | ||
| Female parlours, magical crystals (9) | ||
| Entrance to front parlour's molten mineral (9) | The Guardian Cryptic | 22 Jan 2025 |
| Struggling for particulars after lorry goes missing? It's found in Derbyshire caves | The Telegraph Toughie | 11 Jul 2024 |
| Mineral also called fluorite (9) | ||
| Mineral used in the manufacture of glass | The Telegraph General Knowledge | 22 Jul 2019 |