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pewter
Pewter is a malleable metal alloy, traditionally 85–99% tin, with the remainder consisting of copper, antimony, bismuth and sometimes, less commonly today, lead. Silver is also sometimes used. Copper and antimony act as hardeners while lead is common in the lower grades of pewter, which have a bluish tint. It has a low melting point, around , depending on the exact mixture of metals.〔.〕 The word ''pewter'' is probably a variation of the word ''spelter'', a term for zinc alloys (originally a colloquial name for zinc).〔.〕
== History ==
Pewter was first used around the beginning of the Bronze Age in the Near East. The earliest piece of pewter found is from an Egyptian tomb from 1450 BC.〔.〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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