Related Clues:
- Soap brand with volcanic pumice
- A 13-Down may form in this
- Magma, when above ground
- WD-40 Company soap brand
- Popocatepetl output
- Mountain ash?
- It's expanding Hawaii
- Melted chocolate, in some recipes
- Pumice, once
- Rock in motion
- Chocolate __ cake
- ___ lamp (1960s 57-Across)
- Trippy lamp
- ___ flow
- Volcano's product