Related Clues:

• Discovery in a seam
• It may carry a brand
• Smeltery material
• Nickel source
• Do the laundry
• Mineral bearing rock
• Tire or fire follower
• Smelting need
• See 112-Down
• It's refined
• Mineral deposit
• Refinery rocks
• Prospector's discovery
• Forty-niner's find
• Steel component