Related Clues:

• They lack refinement
• Mined metal
• Popeye, e.g.
• Bank deposit?
• Smelter's stuff
• Mine metal
• See 11-Down
• Products of a 16-Across
• Metallurgists' studies
• See 12-Down
• Dig it!
• Mine find
• Bonanza find
• Piquancy
• Sourdough's find