I asked me a day when I asked me a day. I can't get my mind ...
5 thoughts on “Can I bite the tooth print on the gold?”
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I asked me a day when I asked me a day. I can't get my mind ...
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Yes, why not the ancients bite gold and test the authenticity
It pure gold and low hardness, use nails to draw light marks, teeth can leave tooth printing, high -colored gold jewelry Soft with low color, the more copper, the harder, the more the bending method can test the hardness, the pure gold is soft, it is easy to bend, the lower the purity, and the less likely to bend.
In your guys who are not learned, do n’t understand the harm here.
The pure gold is soft, so the teeth can be used to get a tooth print on the gold.
but it is not necessarily the gold that can be produced. Recently, some people use high purity tin to imitate gold. The hardness and gold difference of tin are not much different.
Then it depends on the use of you to bite without using it
It turns out that the silver in the TV series can really bite out the tooth print, stunned
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impossible. Gold has the most hardness, and it is necessary to see if there is a tooth mark. Yes, it is not gold