One of the Rarest Precious Metals Hits a Record High

  • Iridium, used in spark plugs and glass making, hits record
  • Prices are up 12% this year, outperforming most metals
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One of the least known precious metals hit a record on healthy demand from the car industry and for growing crystals used in mobile phones.

Iridium, one of the platinum-group metals, has climbed 12 percent this year, outperforming everything from nickel to gold. As the second-densest element and with one of the highest melting points among metals, it’s sought after for its use in spark plugs and glass manufacturing.