Related Clues:

• 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
• Red-hot flow
• What obsidian forms from
• Volcanologist's subject