Related Clues:
- Iron or tin
- Zinc or zirconium
- Nitrogen or oxygen
- Almost any element whose name ends in -ium
- Good conductor?
- Earth, wind or fire, to an early scientist
- Detector activator
- Natural environment
- Periodic-table component
- Like most golf woods, nowadays
- Silver or sulfur
- Gold or silver, but not bronze
- Helium or hydrogen
- Heavy rock?
- Gold, e.g.