Other precious metals include the platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum, of which platinum is the most widely traded.
en.wikipedia.org He is also armored in an osmium alloy, making him durable enough to act as a human battering ram.
en.wikipedia.org Iridium is found in nature as an uncombined element or in natural alloys; especially the iridiumosmium alloys, osmiridium (osmium-rich), and iridosmium (iridium-rich).
en.wikipedia.org Osmiridium has been defined as containing a higher proportion of iridium, while iridosmine contains more osmium.
en.wikipedia.org The noble metals are most commonly considered to be ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, and gold.
en.wikipedia.org