Related Clues:
- Pair of mothers welcoming good soft rock
- Outpouring from a volcano
- Molten stuff
- Unsolid rock
- Hawaiian flow
- Stuff that buried some cities
- Periodical by graduate is hot stuff!
- Stromboli spout
- What the floor is, in an improv game
- Kind of cake with molten chocolate
- 'Ingredient' in molten chocolate cake
- Type of lamp with a volcanic name
- Oceanic crust, once
- Result of melted crust
- Eruption content