Introduction: Gold is a precious metal. Gold has a price and a relatively high value. Praising words such as "glorious and magnificent", "real gold is not afraid of fire", "there is a house of gold in the book" all express the loftiness of gold in people's minds.
Location.
Function To participate in future gold investments and obtain opportunities for investment appreciation and value preservation in the gold market, you must have an understanding of gold's properties, characteristics and its role in currency and finance.
Gold is the most precious in the metal kingdom, and also the rarest and rarest.
The quotation of the personal paper gold business is similar to the Foreign Exchange Bao business, that is, the quotation follows the fluctuations of the international gold market. Individuals can earn the price fluctuation of gold prices by grasping the market trend, buying low and selling high.
Transactions in this business are in grams, and the transaction threshold is above 10 grams of gold.
It is worth noting that this business does not carry out physical delivery of gold, which is also the essential difference between paper gold business and physical gold business.
In addition to bank counter transactions, investors can conduct transactions through telephone banking and online banking channels, and obtain real-time quotes through the counter electronic screen, telephone or the Internet.
Classification Metals can be divided into two categories: ferrous (FERROUS) and non-ferrous (NONEFRROUS).
Ferrous metals include pure iron and steel, which are both abundant and cheap.
Non-ferrous metals can be divided into 3 groups: precious metals, base metals and alloys.
Jewelry is made of non-ferrous metals.
Gold is the most popular metal due to its pure texture and charming properties.
Geologists' analysis report pointed out that, except for tantalum, which was discovered in 1802, gold is the rarest metal in the world, which further proves the rarity of gold.
Color (COLOUR) The beauty of golden yellow can be compared with that of the sun.
The steam emitted when gold is boiled is green; its gold powder during the smelting process is usually brown; if it is cast into a thin piece, it can transmit green light.
The DUCTILITY is extremely strong.
One ounce of gold can be stretched up to 50 miles long, and its malleability makes it easy to cast, making it a good choice for jewelry.
Gold has the strongest pulling power among all metals.
Malleability (MALLEABILITY) second to none.
Can produce extremely thin gold sheets that are easy to roll.
Gold weighing 1 anth can be hammered as thin as 1/4 millionth of a foot thick and as large as 100 square feet.
Ancient people hammered it into thin slices and used it to decorate temples and palaces.
It is said that 1 Antu of gold can be used to cover the roof of a house.
If you have the opportunity to visit these ancient temples, be careful because free gold flakes may fall on your head! Physical Properties As a precious metal, gold has good physical properties, as shown by: high melting point, reaching 1064.43 degrees Celsius
, "Real gold is not afraid of fire" means that gold is not easy to melt under ordinary flames.
It has a high density of 19.31 grams/cubic centimeter (at 18°C) and feels heavy to the touch.
Good toughness and ductility, good conductivity.
Pure gold has a bright yellow color, but the color changes greatly after being mixed with other metals. For example, gold-copper alloys appear dark red, and silver-containing alloys appear light yellow or off-white.
Gold is easily ground into powder, which is why gold is dispersed in nature. Pure gold jewelry is also easily worn and reduced in weight.
Because gold is difficult to mine, has high mining costs, and has good physical properties, gold has not only been used as decoration by humans in the long-term social and historical development, but has also been given a monetary value function.
It was not until the 1970s that gold was separated from its direct monetary role, that is, gold was demonetized.
But as a precious metal, gold is still the world's main international reserve.
According to the gold reserves announced in 2000, the top 10 countries and international institutions with gold reserves in the world 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 European Bank (747 tons) and Poland (607 tons). The United Kingdom and China ranked 11th (538 tons).
) and the 14th place is (395 tons).
According to its properties, gold can be divided into two categories: "raw gold" and "ripened gold".
Raw gold, also called "raw gold", "natural gold" or "barren gold", is unrefined gold mined from mines or riverbeds.
Any gold that has been refined is called "ripe gold".
The color of gold changes due to the addition of other elements to cooked gold. People usually refer to cooked gold that has been added with metallic silver but no other metals as "clear gold", while those that have been mixed with silver and other metals are called "clear gold".
The gold is called "mixed gold".
K gold is a way of expressing the color of mixed gold. The gold composition of 4.1666% is lK.
Gold can be expressed as 24K, 22K, 20K and 18K according to the fineness of K gold. The gold content of 24K gold is 99.998%, which is basically regarded as pure gold. The gold content of 22K is 91.665%.
The fineness of gold can also be expressed directly in terms of content percentage, which is usually expressed by dividing the weight of gold into 1,000 parts. For example, if the gold piece is marked 9999, it is 99.99%, and if it is marked 586, it is 58.6%.