Related Clues:

• Mesabi loads
• Iron and manganese, e.g.
• They could use refinement
• Meteor materials
• Metals from the earth
• Raw metals, e.g.
• Taconite and tinstone
• Mineral rocks
• Pocket finds
• Bauxite and hematite
• Mine yield
• Unrefined metal
• Metals in the rough
• Metallurgist's study
• Hidden treasures