Gold is a metal product composed of gold elements as the main ingredient. Gold is a special commodity, and it is also a preserved precious metal product that many people prefer. From an investment perspective, many investors like to buy gold for value preservation or hedging.
Gold does not think it is manufactured, but a natural mineral. . In 4.5 billion years ago, when the earth was formed, a high temperature was high enough to melt the fireball of most minerals. Many small celestial bodies in the universe had some metal elements and gold. When it was melted, gold was also left. Due to the high density of gold, gold sinks his heart, so the mining mine is now underground. Data expansion: Gold (GOLD) is a single -quality form of chemical element (AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments. The chemical symbols of gold are AU, and the English code in finance is XAU or GOLD. The name of the AU comes from a story of Aurora, a goddess of dawn in Roman mythology, means shining dawn. The adulteration: 1. Whether gold has white highlights In material cutting to cut gold bars or gold jewelry and observe the cut surface with a magnifying glass. Blending together, it means that the gold is mixed with crickets. 2, measured the proportion. In the weight of a pure gold bars with an balance, and then put the gold bars into a measuring cup and flood the gold bar. Then put the detected gold bars in a measuring cup, whether the scale of the water rises or decreases. As long as it changes, it means that the gold bar is not pure gold. But if it is gold jewelry, this method is not applicable because there is air in gold jewelry. 3, real gold is not afraid of fire. This gold bars or gold jewelry burned for a while to observe its changes. Because the oxidation reaction occurs with oxygen in the air, the gold bars with insufficient purity will become gray; and the color of the pure gold will be red after the fire is baked. However, this method may be destroyed to jewelry.
Gold is a natural mineral of natural gold, which is a gold block that exists naturally in the natural world, commonly known as "dog head gold". Gold jewelry is now quite popular on the market. Many people will definitely buy gold when they get married. How do you know about gold? Let's take a look together! . 4.5 billion years ago, when the earth was formed, a fire ball was high enough to melt most minerals. With some metal elements and gold, the meteorite was melted when it hit the earth, and the gold was left. Due to the big banquet of gold, gold sank the heart, so the mining mine is now underground. This of gold is formed in the process of long -term evolution of the earth. The golden crust formed in the early stages of the earth's development is high. Therefore, it can generally represent the old -fashioned green rock belt composed of early crusts, especially the combination of magnesium iron and ultra -magnesium iron volcanic rock. In various types of rocks in the crust, it may become the earliest "mineral layer" of gold mines. The golden treasures on the earth are mainly hidden in the underground in two forms of rock gold and sand gold. In addition, there are accompanied gold. The middle of the sand is sprayed and the rock gold is formed. The Golden Shajiang, Heilongjiang and Hunan Zijiang areas in our country have a wide range of sand gold mines. The gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" as a gold unit, a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments.
Gold is a metal product composed of gold elements as the main ingredient. Gold is a special commodity, and it is also a preserved precious metal product that many people prefer. From an investment perspective, many investors like to buy gold for value preservation or hedging.
Gold does not think it is manufactured, but a natural mineral.
. In 4.5 billion years ago, when the earth was formed, a high temperature was high enough to melt the fireball of most minerals. Many small celestial bodies in the universe had some metal elements and gold. When it was melted, gold was also left. Due to the high density of gold, gold sinks his heart, so the mining mine is now underground.
Data expansion:
Gold (GOLD) is a single -quality form of chemical element (AU). It is a soft, golden, corrosive precious metal. Gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" was used as a gold unit, and it was a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments.
The chemical symbols of gold are AU, and the English code in finance is XAU or GOLD. The name of the AU comes from a story of Aurora, a goddess of dawn in Roman mythology, means shining dawn.
The adulteration:
1. Whether gold has white highlights
In material cutting to cut gold bars or gold jewelry and observe the cut surface with a magnifying glass. Blending together, it means that the gold is mixed with crickets.
2, measured the proportion.
In the weight of a pure gold bars with an balance, and then put the gold bars into a measuring cup and flood the gold bar. Then put the detected gold bars in a measuring cup, whether the scale of the water rises or decreases. As long as it changes, it means that the gold bar is not pure gold. But if it is gold jewelry, this method is not applicable because there is air in gold jewelry.
3, real gold is not afraid of fire.
This gold bars or gold jewelry burned for a while to observe its changes. Because the oxidation reaction occurs with oxygen in the air, the gold bars with insufficient purity will become gray; and the color of the pure gold will be red after the fire is baked. However, this method may be destroyed to jewelry.
Gold is a natural mineral of natural gold, which is a gold block that exists naturally in the natural world, commonly known as "dog head gold". Gold jewelry is now quite popular on the market. Many people will definitely buy gold when they get married. How do you know about gold? Let's take a look together!
. 4.5 billion years ago, when the earth was formed, a fire ball was high enough to melt most minerals. With some metal elements and gold, the meteorite was melted when it hit the earth, and the gold was left. Due to the big banquet of gold, gold sank the heart, so the mining mine is now underground.
This of gold is formed in the process of long -term evolution of the earth. The golden crust formed in the early stages of the earth's development is high. Therefore, it can generally represent the old -fashioned green rock belt composed of early crusts, especially the combination of magnesium iron and ultra -magnesium iron volcanic rock. In various types of rocks in the crust, it may become the earliest "mineral layer" of gold mines.
The golden treasures on the earth are mainly hidden in the underground in two forms of rock gold and sand gold. In addition, there are accompanied gold. The middle of the sand is sprayed and the rock gold is formed. The Golden Shajiang, Heilongjiang and Hunan Zijiang areas in our country have a wide range of sand gold mines.
The gold is one of the rare, precious and extremely valued metals. Internationally, gold is generally based on ounces. In ancient China, "two" as a gold unit, a very important metal. It is not only a special currency for reserves and investment, but also an important material for the jewelry, electronics, modern communications, aerospace and air industry and other departments.