Related Clues:
- Form of quartz used as a gemstone
- Stone like marble with layered colours
- Banded quartz, used as gemstone
- Stone-like marble with layers of different colours
- Stone-like marble with layered colours
- Quartz with alternating bands of colour
- A semi-precious stone
- A form of quartz
- Smooth stone with bands of colour
- Agate with different layers of colour
- Two-thirds of the oxygen makes it precious hard
- To open and shut it is a little precious
- A little stone entrance
- Stone for the weigh-in, by the sound of it
- Precious little way in there