Platinum

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A beautiful silvery-white metal, when pure, which is malleable and ductile and occurs native to many worlds. It has a coefficient of expansion almost equal to that of soda-lime-silica glass, and is therefore used to make sealed electrodes in glass systems. Used extensively in jewelry, wire, missile nose cone coating, high-temperature electric furnaces, jet engine fuel nozzles, and vessels for laboratory use, and in many valuable instruments including thermocouple elements. It is also used for electrical contacts and corrosion-resistant apparatus.