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turkish ottoman jewelry wholesale First, the density of gold is 19.32 grams / cubic centimeter, which is about double the same volume of silver, lead, and tin. Available formula: The mass (gram) of a certain gold (gram) is equal to density than the volume (cubic centimeter) of a certain amount of gold. Seeking the density of the gold jewelry measured, the density is 19.32 grams / cubic centimeter is pure gold or more pure gold, otherwise it is a non -pure gold or color difference gold.
It can be divided into two categories: pure gold and K gold. The gold content of pure gold is more than 99%, up to 99.99%, so it is also known as "ninety -nine gold", "full gold", and "red gold". K gold is made from other metals (such as silver, copper metal) to its golden materials, also known as "opening gold" and "color gold". Due to the number of other metals, different K golds have been formed. The size and gold content of the K number are as follows: 24K, 99%or more; 22K, 91.7%; 21K, 87.5%; 18K, 75%; 14K, 58.5%; 12K, 50%; 10K, 41.66%; 9K, 37.5%
8k, 33.34% 6K, 25%
The pure gold texture is soft, the teeth are bite, and it is easy to bend. K gold texture is slightly harder, the teeth bite the mucinoma, the color is yellow in the middle, and the number of K is reduced, the white increases, and the yellow is gradually shallow. K gold feel is not as heavy as pure gold.
The is more confusing with gold, some are gold -plated, some are gold, some are copper, and some are copper alloy. For example, the gold -plated material feels lightly, the texture is hard, the teeth are bitter, and it is easy to fade with a long time. Some colors with poor plating are either red or white, or flowers.
The copper quality is yellow with red, fake, darker luster, soft texture, and light weight. Copper alloy (copper tin alloy), white color, hard and light quality.
. There are many ways to identify gold. The Chinese folk summarizes a set of simple methods. The formula is: see color, weight, listening rhyme, folding hardness, stone grinding, contrast cards, acid points, acid points, acid points, acid points , Ding into color. The first four sentences depends on the eyes and the feeling; the latter four sentences need to be used by tools and reagents. The density of gold is 19.32 grams / cubic centimeter. Available formula: The mass (gram) of a certain gold jewelry (gram) is equal to density than the volume (cubic centimeter) of a certain gold jewelry (cubic centimeter). Seeking the density of the gold jewelry measured, the density is about 19.32 grams / cubic centimeter, it is pure gold or relatively pure gold, otherwise it is a non -pure gold or color difference gold.
wholesale fashion jewelry new york The density of gold changes slightly with the temperature, and the density of gold at room temperature is 19.29-19.37 grams/cubic centimeter.
1.00 wholesale jewelry The density of gold is 19.32 grams / cm 3, that is, a golden ball with a diameter of only 46 mm, its weight is 1 kg.