Gold pure gold generally does not dye gold in color. Gold is a relatively stable metal, not easy to be oxidized, and the chemical properties are relatively stable. It is possible that pure gold is 18k gold or other K gold. Or copper, etc. are easy to be oxidized.
Gold pure gold generally does not dye gold in color. Gold is a relatively stable metal, not easy to be oxidized, and the chemical properties are relatively stable. It is possible that pure gold is 18k gold or other K gold. Or copper, etc. are easy to be oxidized.