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13. Platinum – $60 per gram
Platinum is another attractive silver-white metal that has many uses due to its flexibility. Similar to rhodium and gold, platinum is used in jewelry, engines, chemical reactions, wiring, dentistry and electrodes.Platinum resists oxidizing in air and doesn’t melt in hydrochloric or nitric acid. This element was rediscovered in 1735 after being used as far back as 1200 B.C in Egyptian jewelry.
