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USGS · 70044781

Mineral resource of the month: platinum-group metals

Henry Hilliard
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Abstract

The precious metals commonly referred to as platinum-group metals (PGM) include iridium, osmium, palladium, platinum, rhodium and ruthenium. PGM are among the rarest of elements, and their market values — particularly for palladium, platinum and rhodium — are the highest of all precious metals.

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Henry Hilliard. 2003. Mineral resource of the month: platinum-group metals. https://pubs.usgs.gov/publication/70044781

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