Gold and platinum are precious metals, but they are very different. Gold is one of the earliest metals discovered, developed and utilized by human beings, an important raw material for making jewelry and coins, and an important reserve material of the country, and is known as the "king of metals". Gold is heavy, but lighter than platinum. Its fineness is divided into 24 equal parts by K, and 24K gold is gold with the content of 100%.
Pure gold is golden yellow, but it is rare in nature. The code name of gold is Au. Gold has good ductility. One or two pure gold can be hammered into gold leaves with a thickness of one tenth of a millimeter and an area of nine square meters. 50 grams of pure gold can rotate 8000 meters, which is thinner than hair. The chemical properties of gold are very stable, and it will not be directly oxidized by oxygen at low temperature or high temperature. Its melting point is 1063℃, and it often exists in the state of natural gold.
Platinum, also known as platinum, is platinum in English, and is generally coded by its abbreviation Pt. In the 1990s, platinum began to become the precious metal of domestic consumers' favorite jewelry products. Platinum, with its three characteristics of rarity, purity and hardness, and natural white luster, has conquered the hearts of countless consumers and attracted men and women who pursue fashion.
Platinum is very rare, so far the global platinum reserves add up to only enough to fill a medium-sized room. It takes five months to extract one ounce of platinum from 10 ton platinum ore. Platinum is hard, dense and twice as strong as gold, making it the best choice for setting all kinds of jewelry. Because of the good ductility of platinum, one gram of platinum can pull out 2 kilometers of filaments. The international symbol of Platinum is the words Pt, Plat or Platinum, which is expressed by a few thousandths of purity. For example, Pt990 indicates a purity of 990%. .
Platinum, like platinum, is white and looks the same. There are also unscrupulous traders in the market who use platinum to counterfeit platinum, but in fact it is essentially different.
Platinum is an informal saying of merchants. In the market norms, merchants are not allowed to use the title of "platinum" at all. Platinum is actually a white alloy made of gold and other metals. At present, in order to meet consumers' demand for platinum jewelry, gold and silver or metals such as palladium, nickel, copper and zinc are selected to be melted into a white alloy, which is called "K platinum". The fineness of K platinum is the same as that of K gold, and the K number of "K platinum" is determined by the number of gold in it. For example, 18K platinum and 14K platinum have gold contents of 75% and 58.5% respectively.
Gold and platinum are precious metals, but they are very different. Gold is one of the earliest metals discovered, developed and utilized by human beings, an important raw material for making jewelry and coins, and an important reserve material of the country, and is known as the "king of metals". Gold is heavy, but lighter than platinum. Its fineness is divided into 24 equal parts by K, and 24K gold is gold with the content of 100%.
Pure gold is golden yellow, but it is rare in nature. The code name of gold is Au. Gold has good ductility. One or two pure gold can be hammered into gold leaves with a thickness of one tenth of a millimeter and an area of nine square meters. 50 grams of pure gold can rotate 8000 meters, which is thinner than hair. The chemical properties of gold are very stable, and it will not be directly oxidized by oxygen at low temperature or high temperature. Its melting point is 1063℃, and it often exists in the state of natural gold.
Platinum, also known as platinum, is platinum in English, and is generally coded by its abbreviation Pt. In the 1990s, platinum began to become the precious metal of domestic consumers' favorite jewelry products. Platinum, with its three characteristics of rarity, purity and hardness, and natural white luster, has conquered the hearts of countless consumers and attracted men and women who pursue fashion.
Platinum is very rare, so far the global platinum reserves add up to only enough to fill a medium-sized room. It takes five months to extract one ounce of platinum from 10 ton platinum ore. Platinum is hard, dense and twice as strong as gold, making it the best choice for setting all kinds of jewelry. Because of the good ductility of platinum, one gram of platinum can pull out 2 kilometers of filaments. The international symbol of Platinum is the words Pt, Plat or Platinum, which is expressed by a few thousandths of purity. For example, Pt990 indicates a purity of 990%. .
Platinum, like platinum, is white and looks the same. There are also unscrupulous traders in the market who use platinum to counterfeit platinum, but in fact it is essentially different.
Platinum is an informal saying of merchants. In the market norms, merchants are not allowed to use the title of "platinum" at all. Platinum is actually a white alloy made of gold and other metals. At present, in order to meet consumers' demand for platinum jewelry, gold and silver or metals such as palladium, nickel, copper and zinc are selected to be melted into a white alloy, which is called "K platinum". The fineness of K platinum is the same as that of K gold, and the K number of "K platinum" is determined by the number of gold in it. For example, 18K platinum and 14K platinum have gold contents of 75% and 58.5% respectively.
Gold and platinum are precious metals, but they are very different. Gold is one of the earliest metals discovered, developed and utilized by human beings, an important raw material for making jewelry and coins, and an important reserve material of the country, and is known as the "king of metals". Gold is heavy, but lighter than platinum. Its fineness is divided into 24 equal parts by K, and 24K gold is gold with the content of 100%.
Pure gold is golden yellow, but it is rare in nature. The code name of gold is Au. Gold has good ductility. One or two pure gold can be hammered into gold leaves with a thickness of one tenth of a millimeter and an area of nine square meters. 50 grams of pure gold can rotate 8000 meters, which is thinner than hair. The chemical properties of gold are very stable, and it will not be directly oxidized by oxygen at low temperature or high temperature. Its melting point is 1063℃, and it often exists in the state of natural gold.
Platinum, also known as platinum, is platinum in English, and is generally coded by its abbreviation Pt. In the 1990s, platinum began to become the precious metal of domestic consumers' favorite jewelry products. Platinum, with its three characteristics of rarity, purity and hardness, and natural white luster, has conquered the hearts of countless consumers and attracted men and women who pursue fashion.
Platinum is very rare, so far the global platinum reserves add up to only enough to fill a medium-sized room. It takes five months to extract one ounce of platinum from 10 ton platinum ore. Platinum is hard, dense and twice as strong as gold, making it the best choice for setting all kinds of jewelry. Because of the good ductility of platinum, one gram of platinum can pull out 2 kilometers of filaments. The international symbol of Platinum is the words Pt, Plat or Platinum, which is expressed by a few thousandths of purity. For example, Pt990 indicates a purity of 990%. .
Platinum, like platinum, is white and looks the same. There are also unscrupulous traders in the market who use platinum to counterfeit platinum, but in fact it is essentially different.
Platinum is an informal saying of merchants. In the market norms, merchants are not allowed to use the title of "platinum" at all. Platinum is actually a white alloy made of gold and other metals. At present, in order to meet consumers' demand for platinum jewelry, gold and silver or metals such as palladium, nickel, copper and zinc are selected to be melted into a white alloy, which is called "K platinum". The fineness of K platinum is the same as that of K gold, and the K number of "K platinum" is determined by the number of gold in it. For example, 18K platinum and 14K platinum have gold contents of 75% and 58.5% respectively.
Jade is divided into white jade, jasper, sapphire, jet, topaz, topaz, green jade, Beijing white jade and so on. Geographically, there are Xinjiang jade, Henan jade, xiuyan jade jade (also known as Xinshan jade), Australian jade, dushan jade jade, Southern jade and Canadian jade, among which Xinjiang Hetian jade is a famous specialty in China.
Agate-white, gray, red, blue, green, yellow, sheep liver, gallbladder, chicken blood and black agate. From the pattern, there are: rushes, algae, twisted silk, hawksbill agate and so on. Produced in northeast China, Inner Mongolia, Yunnan and Guangxi. And there is agate with water, called water bile agate.
Stones-turquoise, lapis lazuli, hibiscus stone, wood-changed stone (also known as tiger skin stone), peach stone (also known as golden powder jade), malachite, sapphire, sheep liver stone, tiger eye stone, Dongling stone, etc. Among them, turquoise is a famous product in Yunyang County, Hubei Province, China.
Emerald (jadeite)-There are purple, red, gray, yellow and white, but green is the most expensive. It is a famous specialty of Myanmar, a neighboring country of China.
Coral is a benthic coelenterate fossil, red and white, which is produced in Taiwan Province Province, China, with excellent quality.
Beads-pearls (seawater pearls and freshwater pearls) and cultured pearls (seawater pearls and freshwater pearls).
Gems-diamonds, rubies, sapphires, emeralds, aquamarine, cat's eye gems, discolored gems, topaz gems, opals, tourmalines, pointed gems, garnet gems, zircon gems, olive emeralds, emeralds, quartz cat's eyes, feldspar gems, etc.