Related Clues:

•     Auditioner's goal
• Heavy metal?
• Lead, for one
• Refined find
• It may be played
• It's north of Calif.
• Bonanza find, perhaps
• Seamy matter
• Smelter's need
• Rich rock
• Metal in rocks
• Audition prize
• Source of iron or lead
• Refinable rock
• Graphite, e.g.