3 thoughts on “In ancient times, the true and false of gold ingot was bitten with teeth, and it was true that it could not bite hard. Why is the modern gold ring soft?”
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Gold is soft, and many athletes can bite the tooth printing when taking the gold medal. Therefore, the gold that could not be bitted in ancient times was fake. The so -called "real gold is not afraid of fire" is also false, and the melting point of gold is not high.
You said that the method of biting gold in ancient times was fake, just like modern!
Low composition