Related Clues:

• Refinery input
• They're found in pockets
• Diggers' discoveries
• Raw minerals
• Miner matters
• Bauxite and bornite
• Mine car contents
• Assayer's studies
• Mine deposits
• Underground deposits
• Unrefined finds
• Borax and bauxite, e.g.
• Lucky strikes?
• Sources of iron
• Some bank deposits