Related Clues:

• Gold digger's aim
• Unrefined metal
• Smooth over
• Mineral in spinach
• It passes through adits
• Rocky riches
• Item in Tiger's bag
• It's mined and refined
• Limonite, e.g.
• It has pressing business
• Raw rock
• Seam material
• Bucket conveyor's load
• Geritol ingredient
• Calif.'s northern neighbor