Related Clues:

• Hot flow
• Volcanic product
• Stromboli stuffing?
• Spatter cone's output
• Soap brand with pumice
• Liquefied rock
• Body shop soap
• Dial alternative
• Vesuvius flow
• __ lamp
• Volcanic matter
• Glass-forming liquid
• Spewed magma
• Source of igneous rocks
• Material for a volcanologist