Related Clues:

• Bonanza find
• Lost
• Sourdough's find
• Iron man's quest?
• Neighbor of Ida.
• It's found in banks
• Comstock output
• Band of gold?
• See 38-Across
• Bauxite or hematite
• Mesabi Range yield
• Change from a krone
• It lacks refinement
• See 5-Down
• Some can dig it