Related Clues:

• Source of silver
• It's found in a lode-bearing wall
• Iron in the raw
• Sample for an assayer
• Excavated resource
• Cal.'s northern neighbor
• Zinc or copper, e.g.
• Vein to mine
• Vein valuable
• Rush find
• Neighbor of Nev.
• Unrefined lode
• Stuff in a seam
• Shaft discovery
• It may be all in the mine?