concentrated solution is obtained. The gold piece is then dipped in this mixture and left to sit for several hours, ideally between 8 and 12 hours. After that time, the piece is removed and observed carefully.
If the gold is pure, it should not have any changes: it will still have the same shine, color and texture as before the test. On the other hand, if the part contains important alloys with other metals such as copper, zinc or nickel, dark spots, changes in hue or loss of gloss may appear on the surface. This is because these metals can
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