antique marcasite jewelry wholesale Why does gold turn black after burning with a lighter?

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antique marcasite jewelry wholesale

2 thoughts on “antique marcasite jewelry wholesale Why does gold turn black after burning with a lighter?”

  1. Henry

    wholesale jewelry supplies los angeles Darkness is the cause of oxidation. The hair dye usually contains trace lead elements. When the metal attribute encounters lead elements, the jewelry will turn black. If the cosmetics and hair dyes are caused by black and white, gasoline used for processing jewelry can be used for heating treatment. The melting point of lead and mercury can be used, so it will be sent after heating.
    If you are worried about the authenticity of the gold, you can perform a burning identification:
    This Burning appraisal gold jewelry authenticity of gold jewelry must be used for light fire and such as firewood.
    The fire burning identification gold jewelry is "Qiqing, Eight Yellow, Nine Binding Red, Four or six does not show gold". The color of gold containing 70 %) is green and yellow. Eight yellow refers to the color of 80 % of the gold (including 80 % gold) gold. Nine are red, which refers to 90 % and more than 95 % of gold. Four or six do not appear gold, which refers to gold below 60 % (including 60 %) of gold. The color presented is no longer the color of gold. The color of gold is completely white.

  2. Julio

    southwest jewelry wholesale Pay content for time limit to check for freenAnswer Hello, I am glad to answer your questions. After 18K gold burn the lighter, it may not necessarily turn black, but there is also a possibility of turning black, because this sperm contains only 75%of the golden ingredients. Xinyu is all precious metals. Heating After that, it may become dark, with a precious metal of 18K gold, 75%of the gold, and the remaining 25%are other metals. In success, then the copper in it will be oxidized with fire, and the copper will turn black.nAsk a question and immediately broke the blacknIs it fakenIt is normal to answer black, because this gold contains only 75 % of the golden ingredients, and the rest are precious metals, which will turn black after heating.nAsk a question and break it immediatelynVery light feeling like aluminumnThe answer is definitely fakenThis can only show that the purity is too lownOr there is no goldnQuestion go to quality inspection more than two hundrednIt is not recommended to identify it, basically it is fakenMore 9nBleak

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