Look at the mark on the jewelry first, the gold jewelry will have a symbol of color, such as: Foot gold 990, thousands of gold 999. Then look at the color. Generally, the color of the full gold or thousands of gold is bright golden yellow, and the color of the copper is glossy. Putting gold and brass on your palms, the gold will be more heavy. Finally, look at their hardness, soft and hard brass. color: The color of the foot gold or thousands of gold is bright golden yellow, and the color of the copper is shiny and dazzling. Usually the color of gold, the better its color. If it is red, it contains high copper impurities. : Generally, the gold will feel heavy, and you will feel the sense of oppression in your palm. Because the proportion of gold is 19.3g/cm3, and the proportion of brass is only 8.9g/cm3. hardness: the more pure hardness of the gold, the lower the hardness. There are small traces, and it is easy to bend gold. In the same way, there will be no traces on the brass. The more copper content, the more difficult to bend.
Look at the mark on the jewelry first, the gold jewelry will have a symbol of color, such as: Foot gold 990, thousands of gold 999. Then look at the color. Generally, the color of the full gold or thousands of gold is bright golden yellow, and the color of the copper is glossy. Putting gold and brass on your palms, the gold will be more heavy. Finally, look at their hardness, soft and hard brass.
color: The color of the foot gold or thousands of gold is bright golden yellow, and the color of the copper is shiny and dazzling. Usually the color of gold, the better its color. If it is red, it contains high copper impurities.
: Generally, the gold will feel heavy, and you will feel the sense of oppression in your palm. Because the proportion of gold is 19.3g/cm3, and the proportion of brass is only 8.9g/cm3.
hardness: the more pure hardness of the gold, the lower the hardness. There are small traces, and it is easy to bend gold. In the same way, there will be no traces on the brass. The more copper content, the more difficult to bend.