Related Clues:
- One should evacuate WC, given standard deposits of igneous rock
- A couple of pints put on the last stone
- Reportedly measures gemstone
- Mike, even shorter, needs a mineral
- Dread receiving pounds, shillings and pence for mineral
- Mineral one extracted from areas of land — what you'd expect
- Transparent mineral
- Silicon dioxide mineral
- Type of watch and crystal
- Silicon dioxide used as a gemstone
- Mineral used in modern timepieces
- Hard mineral in timepieces
- Semitransparent insulating mineral
- Colourless mineral used to make glass
- Translucent mineral in sheets