Related Clues:
- Pumice, in fluid form
- Expelled molten rock
- Output of some natural explosions
- Hot spew
- Volcanic flower
- Volcano's ejection
- Red-hot outflow
- Molten outpouring
- Eruption stream
- Stuff from a volcano
- It flows and glows
- With 59 Down, ''pumice-powered'' product
- Volcano's spew
- Source of volcanic glass
- Stuff from volcanoes