The ISO currency code of platinum ingot is "XPT". Platinum coins, platinum bars and platinum ingots can be traded or collected. Because platinum is not easy to corrode and has a shiny appearance, it is also used as jewelry, usually 90% to 95% alloy.
In the sustained and steady growth economy, the price of platinum is often twice that of gold; In unstable times, due to the reduction of industrial demand, platinum prices generally fall below the gold price level. When the economy is depressed, the price of gold is more stable because its demand is not driven by industrial use. /kloc-in the 0/8th century, Louis XV of France announced that platinum was the only metal worthy of the king in view of its rarity.
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Platinum is extremely rare and is usually regarded as a symbol of nobility. The platinum card service level of credit cards, debit cards and some membership cards is generally higher than that of gold cards. For records, the "White Gold Award" is the second highest honor, lower than diamonds and higher than gold, silver and bronze.
For example, in the United States, records that sell more than one million copies will be called "platinum records" and records that sell more than ten million copies will be called "diamond records". Other commodities will also be called "platinum" if the surface is silvery white. Queen Elizabeth's crown was specially made for the coronation of George VI, and its frame was made of platinum. This is the first British crown to use platinum.
Reference source: Baidu Encyclopedia-Platinum