5 thoughts on “Can I bite the tooth print on the gold?”

  1. 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.

  2. 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.

  3. It turns out that the silver in the TV series can really bite out the tooth print, stunned

    n00:00 / 00: 2670% shortcut keys to describe space: Play / pause ESC: Exit full screen ↑: increase volume 10% ↓: decreases by 10% →: Single fast forward 5 seconds studio Here you can drag no longer appear in the player settings to reopen the small window shortcut key description

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