Related Clues:

• With 89-Across, brand of frozen potatoes
• Mesabi Range output
• Smeltery's raw material
• Deposit content
• It's major for miners
• Metals source
• Miner's objective
• Scandinavian coin
• Bonanza rock
• What rock fans may dig
• 100ths of a krona
• Assayed material
• Vein fill
• It's all in vein
• Dig this?