Related Clues:

• Bore for ore
• It can be picked out
• Cal. neighbor
• Smelted stuff
• Gold digger's aim
• Unrefined metal
• Explosive device
• Submarine danger
• It passes through adits
• Rocky riches
• It's mined and refined
• Sweeper's target?
• Raw rock
• Seam material
• Bucket conveyor's load