Related Clues:

• Silver or iron, e.g.
• Deposit in some banks
• Miners dig it
• Rockhound's find
• Nickel in a pocket, perhaps?
• Quarry product
• Miner's load
• Vein filler
• Raw rock
• Miner's strike
• Mine output
• Slag source
• Raw rocks
• Tramcar contents
• Raw mineral