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Webruthenium (Ru), chemical element, one of the platinum metals of Groups 8–10 (VIIIb), Periods 5 and 6, of the periodic table, used as an alloying agent to harden platinum and palladium. Silver-gray ruthenium metal … WebFind many great new & used options and get the best deals for Germania 2024 5 Mark Germania & Britannia- Space Red & Ruthenium 1Oz Silver Coin at the best online prices at eBay! Free shipping for many products! ... Gold & Black Varnish 1Oz Silver Coin. $62.50 + $21.00 shipping. ... Sellers declare the item's customs value and must comply with ... buffett healthcare