Related Clues:

• Rock in a seam
• Stuff to be smelted
• Salem is its cap
• Miner's vein contents
• Nickel, e.g
• Groundbreaking discovery
• Lorry lode
• Mined resource
• Underground band
• What assayers analyze
• Pyromorphite, e.g
• Pitchblende, for one
• Cinnabar, vis-Г -vis mercury
• Pitchblende, e.g
• Cassiterite, for one