18K Golden Value. 18k mark is AU750. Or 18K or G750. The label AU is actually a mark of gold. If 100 copies of gold are divided into 24 copies, accounting for 18 copies. 750, that is, the gold content with a gold content of 750 is 18K gold. 18k gold is often used in valuable gem inlays, and gold from color to hardness cannot perfectly realize the inlay of high -grade jewelry.
18K Golden Value. 18k mark is AU750. Or 18K or G750. The label AU is actually a mark of gold. If 100 copies of gold are divided into 24 copies, accounting for 18 copies. 750, that is, the gold content with a gold content of 750 is 18K gold. 18k gold is often used in valuable gem inlays, and gold from color to hardness cannot perfectly realize the inlay of high -grade jewelry. This information: The main component of gold is chemical element gold. Gold (GOLD) is a single form of chemical element gold (chemical element symbol AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals. The color of gold is golden yellow, metal luster, difficult to break down. Hardness is 2-3, pure gold is 19.3, and the melting point is 1064.4 ° C; it has good ductility and can be pressed into thin foil. It has extremely high heat transfer and conductivity. Pure The atomic nucleus of gold contains 79 protons, protons, protons, protons, and protons. Bring a positive charge. At the same time, due to the conformity of half full rules, gold has good chemical stability. In the metal market, metals such as crickets, 铑, 钯, 锇, 铱, and platinum are collectively referred to as precious metals. The heavy elements such as gold and silver on the earth are other stars that have existed in the "near" before the sun. After the explosion, various elements have been produced. The planet like the earth stayed on the earth. The sun is not the first generation of stars, but may be the second and third generation of stars. In fact, not only heavy elements, all elements that are more hydrogen and heavy, including all elements that form the human body, have evolved step by step in the life of the stars. From a piece of nothing to this day, the universe has evolved in 13.8 billion years. During the cosmic event such as the star explosion, the element was emitted into the space of the universe and turned into a dust floating in the universe. After countless hundreds of millions of years of drift and convergence, these dust rearranged with dust such as hydrogen to form a nebula, and the main components were hydrogen. During the re -evolution of the nebula into a star, after the hydrogen was compressed, it was re -ignited. A new star was born. Whist to form a stars such as a relatively light element such as hydrogen, in the dust around the new star, these relatively heavy elements have formed planets around the star Essence
Pay content for time limit to check for freenAnswer Hello, valuable, the price of 18K gold mall is about 1G260 yuan, 18K gold is the gold content of at least 75%of the alloy, that is, the gold content of 18/24, the remaining 25%are other precious metals, including platinum, nickel, silver, 钯 钯 钯Gold and other. 18K gold is a kind of gold jewelry with low cost and more comfortable wearing. The calculation method of K gold is to divide pure gold into 24 copies, 24K gold is foot gold, but in reality, it is impossible to have 100%gold. Therefore, gold with a prescribed content of 99.6%and above can be called 24K gold.
18K Golden Value.
18k mark is AU750. Or 18K or G750. The label AU is actually a mark of gold. If 100 copies of gold are divided into 24 copies, accounting for 18 copies. 750, that is, the gold content with a gold content of 750 is 18K gold.
18k gold is often used in valuable gem inlays, and gold from color to hardness cannot perfectly realize the inlay of high -grade jewelry.
The expansion information 8K = 8*4.166%= 33.328%(333 ‰)
9k = 9*4.166%= 37.494%(375 ‰)
10k = 10*4.166%= 41.660 %(417 ‰)
12k = 12*4.166%= 49.992%(500 ‰)
14k = 14*4.166%= 58.324%(583 ‰)
18*4.166%= 74.998%( 750 ‰)
20K = 20*4.166%= 83.320%(833 ‰) White 18K gold
Reference information Source: Baidu Encyclopedia-18K gold
18K Golden Value.
18k mark is AU750. Or 18K or G750. The label AU is actually a mark of gold. If 100 copies of gold are divided into 24 copies, accounting for 18 copies. 750, that is, the gold content with a gold content of 750 is 18K gold.
18k gold is often used in valuable gem inlays, and gold from color to hardness cannot perfectly realize the inlay of high -grade jewelry.
This information:
The main component of gold is chemical element gold.
Gold (GOLD) is a single form of chemical element gold (chemical element symbol AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals.
The color of gold is golden yellow, metal luster, difficult to break down. Hardness is 2-3, pure gold is 19.3, and the melting point is 1064.4 ° C; it has good ductility and can be pressed into thin foil. It has extremely high heat transfer and conductivity. Pure
The atomic nucleus of gold contains 79 protons, protons, protons, protons, and protons. Bring a positive charge. At the same time, due to the conformity of half full rules, gold has good chemical stability. In the metal market, metals such as crickets, 铑, 钯, 锇, 铱, and platinum are collectively referred to as precious metals.
The heavy elements such as gold and silver on the earth are other stars that have existed in the "near" before the sun. After the explosion, various elements have been produced. The planet like the earth stayed on the earth.
The sun is not the first generation of stars, but may be the second and third generation of stars. In fact, not only heavy elements, all elements that are more hydrogen and heavy, including all elements that form the human body, have evolved step by step in the life of the stars. From a piece of nothing to this day, the universe has evolved in 13.8 billion years.
During the cosmic event such as the star explosion, the element was emitted into the space of the universe and turned into a dust floating in the universe. After countless hundreds of millions of years of drift and convergence, these dust rearranged with dust such as hydrogen to form a nebula, and the main components were hydrogen.
During the re -evolution of the nebula into a star, after the hydrogen was compressed, it was re -ignited. A new star was born.
Whist to form a stars such as a relatively light element such as hydrogen, in the dust around the new star, these relatively heavy elements have formed planets around the star Essence
Pay content for time limit to check for freenAnswer Hello, valuable, the price of 18K gold mall is about 1G260 yuan, 18K gold is the gold content of at least 75%of the alloy, that is, the gold content of 18/24, the remaining 25%are other precious metals, including platinum, nickel, silver, 钯 钯 钯Gold and other. 18K gold is a kind of gold jewelry with low cost and more comfortable wearing. The calculation method of K gold is to divide pure gold into 24 copies, 24K gold is foot gold, but in reality, it is impossible to have 100%gold. Therefore, gold with a prescribed content of 99.6%and above can be called 24K gold.