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做假金项链和真的有什么区别

更新时间: 2020-07-06 00:00:00     

金项链真假区别:

1、真黄金比同体积的银、铅、锡重一倍左右。真金拿在手上有坠手感,而铜或其它只有重感而无坠感。

2、成色高的黄金首饰受敲击或往硬地抛掷时,发出噗嗒的沉闷低声,有声无韵也无弹力,弹力越大、音韵越尖越长者成色越差。假的或成色低的黄金声音脆而无沉闷感,一般发出当当响声,而且声有余音,落地后跳动剧烈。

3、成色高的黄金,用大头针或指甲刻划均可留下痕迹。而假的不会留下痕迹。

关键词: 项链 真的 什么 区别

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