Definition of gold: Gold is a kind of precious metal, gold is valuable, and the value content is relatively high. Gold is a lofty position in people's minds. To participate in future gold investment and get the chance of investment appreciation and value preservation in the gold market, we must understand the role of gold attributes, characteristics and its role in monetary finance. Gold is the most precious and most rare one in the metal kingdom. Metals can be divided into two categories: iron (Ferrous) and excluding iron (). Iron metals include pure iron and steel, both of which are metal with more output and cheap. It can be divided into 3 groups without iron: valuable metals, basic metals and alloys. The manufacturing jewelry uses a metal without iron. The texture of gold is pure and has the characteristics of coquettish people. It is the most popular metal. The analysis report of geologists pointed out that in addition to the tantalum discovered in 1802, gold is the most rare metal in the world, which proves that it is rare. color (color) — The beauty of golden yellow can be compared with the sun. The steam emitted when the gold is cooked is green; its gold powder is usually brown during the smelting process; if it is cast into a thin piece, it can transmit green light. rlitity — is extremely strong. 1 Anshi's gold can be pulled into 50 miles long, and its ductility makes it easy to cast. It is a good choice for making jewelry. Gold is the strongest in the metal. Forgedness () is bordering and none. It can cause extremely thin and easy to roll up. 1 The heavy gold can be hammered to 1) of 4 million and 100 square meters. The area is large. The ancients hammered it into thin slices to decorate the temple and the palace. It is said that the gold of the land can be used to fill the top cover of a house. If you have the opportunity to visit these ancient temples, you must pay attention or will fall on your head for free gold films! Gold, as a precious metal, has good physical characteristics, manifested as: high melting point, reaching L064.43 degrees Celsius, "real gold is not afraid of fire" means that the gold is not easy to melt under general flames. The density is large, which is 19.31 grams/cubic centimeter (at 18 ° C), and feels heavy. Good toughness and ductility, strong guidance. Pure gold has gorgeous yellow, but after incorporating other metals, the color changes greatly. For example, gold and copper alloy are dark red, and the silver alloy is light yellow or gray -white. Jin Yi was grinded into powder, which is why Jin is scattered in nature. Pure gold jewelry is also easily worn and reduced. It because gold has the characteristics of poor mining, high mining costs, and good physical characteristics, gold is not only decorated by humans in the long -term social history development, but also gives monetary value functions. It was not until the 1970s that gold was separated from the direct currency role, that is, gold non -monetization. But as precious metals, gold is still the world's main international reserves. According to the gold reserves announced in 2000, the top 10 countries and international institutions in the world's gold reserves are: the United States (8137 tons), Germany (3469 tons), the International Monetary Fund (3217 tons), France (3025 tons) , Switzerland (2494 tons), Italy (2452 tons), the Netherlands (912 tons), Japan (764 tons), the Bank of Europe (747 tons) and Poland (607 tons), Britain and China ranked 11th (538 tons) The 14th position is (395 tons). Gold is divided into two categories: "Gold" and "Cooked Gold". Shengjin is also called "original gold", "natural gold" or "barren gold", which is a gold that people mine from the mines or the riverbed and have not been refined. All refined gold is called "cooked gold". Due to the addition of other elements in cooked gold, gold changes in color. People usually call the cooked gold that has been added with metal silver without other metals. The gold is called "mixed gold". K gold is a way of mixed color gold, 4.1666%of gold ingredients are LK. Gold can be expressed as 24K, 22K, 20K, and 18K, etc. The gold content of 24K gold can be expressed. The gold content of 24K gold is 99.998%, which is basically considered to be pure gold. The 22K gold content is 91.665%. The golden color can also be represented directly with the percentage of the content. Usually, the gold weight is divided into 1,000 copies. For example, 9999 is 99.99%marked on the gold piece, and 58.6%of the 586 is marked. The gold products on the market are two types: one is percentage, such as G999, etc.; the other is K gold, such as G24K, G22K and G14K. my country has regulations on the mark and logo of gold products. Generally, the production enterprise code, the name of the material, and the mark of the content are generally required. The same is true internationally. But for some particularly small products, they are also allowed not to mark. The color of gold: The purity of gold and its products is called "form" or "color". . In more than 200 BC, Greek mathematician Archimdes was worried about determining whether a crown was made of pure gold. When he took a bath in the bathtub, he found the law of being called "Akimid's proportion": an object immersed in the liquid was affected by the upward buoyancy; the size of the buoyancy was equal to the weight of its discharge liquid. As a result, the king's customized crown was made in pure gold. So, how is the purity of gold expressed? 1 1. Use "K gold" to represent the purity of gold The national standard GB11887-89 regulations, each opening (English Carat, Devin Karat abbreviation, often writing "K") gold content is 4.166%, so , The gold content of each gold is (national standard in the bracket): 8K = 8*4.166% = 33.328% (333 ‰) 9k = 9*4.166% = 37.494% (375 ‰) r r r r r r r r r r r r r r n10k = 10*4.166%= 41.660%(417 ‰) 12k = 12*4.166%= 49.992%(500 ‰) 14k = 14*4.166%= 58.324%(583 ‰) n18k = 18*4.166%= 74.998%(750 ‰) 20K = 20*4.166%= 83.320%(833 ‰) 21k = 21*4.166%= 87.486%(875 ‰) 22K = 22*22* 4.166%= 91.652%(916 ‰) 24k = 24*4.166%= 99.984%(999 ‰) 24k gold is considered a pure gold and became "1000 ‰", but the actual gold content was 99.99%. Fold to 23.988K. 2. Use text to express the purity of gold The text marks on some gold jewelry, the regulations are: foot gold-gold content is not less than 990 ‰
Definition of gold:
Gold is a kind of precious metal, gold is valuable, and the value content is relatively high. Gold is a lofty position in people's minds. To participate in future gold investment and get the chance of investment appreciation and value preservation in the gold market, we must understand the role of gold attributes, characteristics and its role in monetary finance. Gold is the most precious and most rare one in the metal kingdom. Metals can be divided into two categories: iron (Ferrous) and excluding iron (). Iron metals include pure iron and steel, both of which are metal with more output and cheap. It can be divided into 3 groups without iron: valuable metals, basic metals and alloys. The manufacturing jewelry uses a metal without iron. The texture of gold is pure and has the characteristics of coquettish people. It is the most popular metal. The analysis report of geologists pointed out that in addition to the tantalum discovered in 1802, gold is the most rare metal in the world, which proves that it is rare.
color (color) —
The beauty of golden yellow can be compared with the sun. The steam emitted when the gold is cooked is green; its gold powder is usually brown during the smelting process; if it is cast into a thin piece, it can transmit green light.
rlitity —
is extremely strong. 1 Anshi's gold can be pulled into 50 miles long, and its ductility makes it easy to cast. It is a good choice for making jewelry. Gold is the strongest in the metal.
Forgedness ()
is bordering and none. It can cause extremely thin and easy to roll up. 1 The heavy gold can be hammered to 1) of 4 million and 100 square meters. The area is large.
The ancients hammered it into thin slices to decorate the temple and the palace. It is said that the gold of the land can be used to fill the top cover of a house. If you have the opportunity to visit these ancient temples, you must pay attention or will fall on your head for free gold films!
Gold, as a precious metal, has good physical characteristics, manifested as: high melting point, reaching L064.43 degrees Celsius, "real gold is not afraid of fire" means that the gold is not easy to melt under general flames. The density is large, which is 19.31 grams/cubic centimeter (at 18 ° C), and feels heavy. Good toughness and ductility, strong guidance. Pure gold has gorgeous yellow, but after incorporating other metals, the color changes greatly. For example, gold and copper alloy are dark red, and the silver alloy is light yellow or gray -white. Jin Yi was grinded into powder, which is why Jin is scattered in nature. Pure gold jewelry is also easily worn and reduced.
It because gold has the characteristics of poor mining, high mining costs, and good physical characteristics, gold is not only decorated by humans in the long -term social history development, but also gives monetary value functions. It was not until the 1970s that gold was separated from the direct currency role, that is, gold non -monetization. But as precious metals, gold is still the world's main international reserves. According to the gold reserves announced in 2000, the top 10 countries and international institutions in the world's gold reserves are: the United States (8137 tons), Germany (3469 tons), the International Monetary Fund (3217 tons), France (3025 tons) , Switzerland (2494 tons), Italy (2452 tons), the Netherlands (912 tons), Japan (764 tons), the Bank of Europe (747 tons) and Poland (607 tons), Britain and China ranked 11th (538 tons) The 14th position is (395 tons).
Gold is divided into two categories: "Gold" and "Cooked Gold". Shengjin is also called "original gold", "natural gold" or "barren gold", which is a gold that people mine from the mines or the riverbed and have not been refined. All refined gold is called "cooked gold". Due to the addition of other elements in cooked gold, gold changes in color. People usually call the cooked gold that has been added with metal silver without other metals. The gold is called "mixed gold". K gold is a way of mixed color gold, 4.1666%of gold ingredients are LK. Gold can be expressed as 24K, 22K, 20K, and 18K, etc. The gold content of 24K gold can be expressed. The gold content of 24K gold is 99.998%, which is basically considered to be pure gold. The 22K gold content is 91.665%. The golden color can also be represented directly with the percentage of the content. Usually, the gold weight is divided into 1,000 copies. For example, 9999 is 99.99%marked on the gold piece, and 58.6%of the 586 is marked.
The gold products on the market are two types: one is percentage, such as G999, etc.; the other is K gold, such as G24K, G22K and G14K. my country has regulations on the mark and logo of gold products. Generally, the production enterprise code, the name of the material, and the mark of the content are generally required. The same is true internationally. But for some particularly small products, they are also allowed not to mark.
The color of gold:
The purity of gold and its products is called "form" or "color".
. In more than 200 BC, Greek mathematician Archimdes was worried about determining whether a crown was made of pure gold. When he took a bath in the bathtub, he found the law of being called "Akimid's proportion": an object immersed in the liquid was affected by the upward buoyancy; the size of the buoyancy was equal to the weight of its discharge liquid. As a result, the king's customized crown was made in pure gold. So, how is the purity of gold expressed?
1 1. Use "K gold" to represent the purity of gold
The national standard GB11887-89 regulations, each opening (English Carat, Devin Karat abbreviation, often writing "K") gold content is 4.166%, so , The gold content of each gold is (national standard in the bracket):
8K = 8*4.166% = 33.328% (333 ‰)
9k = 9*4.166% = 37.494% (375 ‰) r r r r r r r r r r r r r r n10k = 10*4.166%= 41.660%(417 ‰)
12k = 12*4.166%= 49.992%(500 ‰)
14k = 14*4.166%= 58.324%(583 ‰) n18k = 18*4.166%= 74.998%(750 ‰)
20K = 20*4.166%= 83.320%(833 ‰)
21k = 21*4.166%= 87.486%(875 ‰)
22K = 22*22* 4.166%= 91.652%(916 ‰)
24k = 24*4.166%= 99.984%(999 ‰)
24k gold is considered a pure gold and became "1000 ‰", but the actual gold content was 99.99%. Fold to 23.988K.
2. Use text to express the purity of gold
The text marks on some gold jewelry, the regulations are: foot gold-gold content is not less than 990 ‰