你买一个戒指给你特别的女士,但是因为你买不起珠宝商店价格时,你经历一个朋友“有一个家伙。”You meet "the guy" in his small apartment, where he shows you a nice collection of gold, silver and platinum jewelry. The gold rings are stamped 24 karat, so you feel pretty convinced that it's all on the level, believing the story about his uncle's jewelry store and the accidental overstock. In the end, you decide on a nice gold band, which you'll have engraved with some sweet nothings, or something. Your girlfriend loves the ring and all is well, that is until the next day when she wakes up with a green ring finger. Turns out you were taken like a sucker -- the guy your friend knew sold you some fake gold jewelry.
看你的手指变绿后戴着金戒指就是一定要告诉它不是真实的。当客户对黄金的商店,他或她是知情的纯度克拉的数量,也就是14 k或18 k邮票在里面你的戒指的意思。金太软来保持其形状和承受天天穿,这是与其他金属混合创建一个坚固的金属合金。金属用于制造合金可能是铜、锡、镍和钯,只是仅举几例。最高的评级是24克拉黄金,使它最纯粹,但至少耐用。
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当你买一个便宜的,假黄金戒指,很可能主要是铜做的。出汗时,金属的戒指在你的汗水与酸反应生成盐,它是绿色的。这些酸是导致铜腐蚀金属表面,形成金属盐化合物。这些盐被肌肤吸收,结果是一个绝对绿色数字。这是什么可担心;这不是一个你遭受金属过敏。它只是意味着你认为是真实的金戒指是真的只是一个廉价的仿制品。金属过敏引起红肿,不是一个沉闷的绿色。假黄金现货的另一种方法是,它可以在高湿度或生锈。
