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如何鉴别金戒指
更新时间: 2020-10-13 00:00:00  

1、金属都能导热的,放到火上烧烧,如果变暗或者发黑了就说明是假的,如果还是像原来那么亮则为真;

2、真的金饰品质地是有一定的柔软度的,用手可捏变形;

3、在黄金首饰中,纯金首饰质地较软,牙咬有印,容易弯折,色泽金黄、纯正、柔和,手感沉重,有沉甸甸的感觉,假金首饰牙咬无印,色泽是黄中带白,并依K数的减小,白色渐增,黄色渐浅,假金首饰的手感不如纯金首饰沉重;

4、在试金石上划出确知含量的色痕,再拿待测的金饰物在同一试金石上划痕,两相比较,最后由行家判定成色;

5、比较重量法,把黄金放在手心有沉重感,而铜明显轻;

6、硝酸辨别法,在硝酸中,黄金安然无恙,而铜却立刻冒出绿色烟;

7、品尝法,将黄金放入口中用舌头舔一会儿,然后吸烟,如果首饰是铜的,嘴里有甜丝丝的味,而黄金无异味等。

关键词: 如何 鉴别 戒指

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