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唐代开元通宝和宋代钱币中有不少钱的铜质呈白色,泉界称其为白铜钱。白铜钱一般制作较为精美,据金属成分分析,此种钱之所以里白色,是铸钱时铜合金中添加了过量的锡所致。但是汉代的半两和五铢白铜钱未见钱谱收录,也未见钱币文献记载报道。汉代四铢半两钱多为即山铸钱,就是直接在矿山附近用所冶炼的粗铜铸钱,铜质一般多成淡红色。笔者藏有1枚四铢半两钱(见图),铜质白亮,颜色超出所见唐代开元通宝白铜钱和
In the Tang Dynasty Kaiyuan Tongbao and Song Dynasty coins have a lot of money in the white copper, Springs said it is white copper coins. The general production of white copper coins is more exquisite, according to the analysis of metal composition, the reason why such money is white, is cast when the copper alloy added excess tin. However, the half and two and five baht white copper coins in the Han Dynasty no money spectrum included, nor did the coins reported in the literature. Han baht half a dozen money for the mountain that is money, that is, directly in the mine near the smelting of copper casting money, copper generally more into a reddish color. I have a possession of a four-baht half-two money (see photo), white copper, the color beyond the visible Kaiyuan Tong Baozai copper money and