Related Clues:

• Hard now having rockily been fired
• Having been liquid it's become sort of rock hard
• Formed by the solidification of magma
• Of volcanic origin
• No use getting upset after soldier retreats from fire
• Eccentric genius eating nothing fiery
• Like fire in turn goes off
• Like fire
• Like fire - type of rock
• Type of rock with molten origin
• Originally molten (rock)
• (Of rock) solidified from lava or magma
• Like granite
• Type of rock in use - go to mine it?
• Volcanic (rock)