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Russia Makes Largest Gold Sell-Off Since 1998 Default to Fund Putin’s War Budget
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If practical uses drove the cost platinum and pallidium would still cost more than gold, (they did for some years around 2001,) as they are catalysts for chemical processes, and can be used like gold to handle high currents without burning up.
Silver actually has a lower specific resistance than gold and platinum and the like, it can handle high voltages though not as much as gold and platinum.