Challenging puzzle for experienced crossword solvers
Innovative Applications of Rare Metals
Moderate difficulty suitable for most players
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Across
- 1. Rare earth metal used in camera lenses and batteries
- 2. Extremely durable metal used for spark plugs and crucibles
- 4. Key rare earth for powerful magnets in headphones and motors
- 6. Metal used in catalytic converters to reduce car emissions
Down
- 3. Dense metal used in fountain pen tips and instrument pivots
- 5. Metal often applied as a hardening agent in electrical contacts
- 7. Precious metal used in fuel cells and jewelry
- 8. Corrosion-resistant metal essential for capacitors in electronics
- 9. Rare earth employed in catalytic converters and glass polishing
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