Related Clues:

• Grayish hue
• Glass-forming liquid
• Forehead smudge
• Spewed magma
• Tip for a smoker?
• Source of igneous rocks
• Material for a volcanologist
• Andiron coating
• Rolling stone?
• 'Pokémon' boy
• Mount Pelee output
• Very hot rock
• Memento from an old flame?
• Havana leftover
• Red-hot melted rock