Related Clues:

• Blast furnace stuff
• Valuable stuff from down under
• It's S of Wash.
• Mineral-bearing rock
• Mispickel or zinc
• Argentite, e.g.
• A miner matter?
• Potential pay dirt
• Source of scandium
• Result of a vein search?
• Mine car cargo
• Seamy stuff?
• Uranium source, e.g.
• For miners it's major
• It's totally unrefined