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PLATINUM, Pt

UNRIPE GOLD

’Twas once dismissed as unripe gold, too hard to melt or cast,

GROUP 10 TRANSITION METAL

Apart from one 7th-century BCE Egyptian artifact, no evidence exists of platinum’s use in ancient times. This non-tarnishing, silvery-white, lustrous metal only entered the European consciousness during Spain’s 16th-century conquest of South America. It had been known there and worked ...

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