2 thoughts on “How can I know that the purity of gold jewelry is high or not”
Wilma
Looking at the color, according to the different gloss and color of gold, you can generally distinguish between pure gold, K gold, real gold, fake gold, gold is better yellowish yellow, and the color is more than 95%; In density, you may wish to use the formula " The mass (gram) of a certain gold jewelry/volume (cubic centimeter) = density of the gold jewelry (cubic centimeters) of the gold jewelry is calculated, and the density of the gold jewelry measured is calculated. The density is about 19.32 grams/cubic centimeter That is, a non -pure gold or a color difference gold; folding hardness, with a high -colored nail carving, leaving traces of 97%. The gold jewelry of about%is hard when bending, and about 90%of the gold jewelry of about 90%. It is very hard when bending, and the gold jewelry containing more impurities is disconnected at two or three times. If discrimination of gold pros and cons, you can also listen to the rhyme and see elasticity. If you use the tools, the easiest is to identify the color with the test gold stone, that is, the gold pairing card and the subject's first jewelry are used to grind the lane on the test stone. Jewelry color -gold rush is easy to provide
Burning with a musket, if the gold indicates that it is not bright, there is a layer of impurities in white or black, and there is a problem with the amount of gold.
Looking at the color, according to the different gloss and color of gold, you can generally distinguish between pure gold, K gold, real gold, fake gold, gold is better yellowish yellow, and the color is more than 95%;
In density, you may wish to use the formula " The mass (gram) of a certain gold jewelry/volume (cubic centimeter) = density of the gold jewelry (cubic centimeters) of the gold jewelry is calculated, and the density of the gold jewelry measured is calculated. The density is about 19.32 grams/cubic centimeter That is, a non -pure gold or a color difference gold;
folding hardness, with a high -colored nail carving, leaving traces of 97%. The gold jewelry of about%is hard when bending, and about 90%of the gold jewelry of about 90%. It is very hard when bending, and the gold jewelry containing more impurities is disconnected at two or three times.
If discrimination of gold pros and cons, you can also listen to the rhyme and see elasticity. If you use the tools, the easiest is to identify the color with the test gold stone, that is, the gold pairing card and the subject's first jewelry are used to grind the lane on the test stone. Jewelry color -gold rush is easy to provide
Burning with a musket, if the gold indicates that it is not bright, there is a layer of impurities in white or black, and there is a problem with the amount of gold.