Related Clues:

• Discovery at Sutter's Mill
• Resolve (with ''out'')
• See 21-Down
• Part of a krone
• Steel ingredient
• Decrease?
• Smelter stuff
• Hemoglobin component
• It may be sought in a rush
• Heavy metal
• It's picked out
• Taconite or siderite
• Fairway selection
• Miner's pay dirt
• It's pumped