Diamond knowledge tells you how diamonds are formed

Diamonds are cut from diamond honing, not only with legendary and mysterious colors, but also a symbol of courage, rights, status and dignity. Diamonds from the past dignitaries and treasures that rich people can enjoy, to the popular gems that ordinary people can now own and wear. Diamond culture has a long history and a long history. How did diamonds form? Next, the China Jewelry Merchants Network Xiaobian will tell you about diamond knowledge and the formation of diamonds.

Diamond knowledge

In the deep high pressure and high temperature of the earth, a simple crystal composed of carbon is formed. This crystal is called diamond. It is the original stone of diamond. After honing and cutting, it creates a dazzling diamond. Diamonds have the highest hardness and high emerald properties in natural minerals. Forced collision is easy to break.

The chemical composition of a diamond is carbon, which is the only single element in a gemstone. That is to say, diamond is the singlest component of all gemstones, which also gives it many unique properties. Diamonds are luminescent. Under sunlight, diamonds can emit light cyan phosphorescence at night; X-rays, diamonds emit sky blue fluorescence, diamonds are chemically stable, and are not easily soluble in acids and bases at normal temperatures. Will not work for it.

How is the diamond formed?

The diamond was first discovered in India. It is located in the upper part of the river. The original rock containing diamonds is weathered and broken. The diamond is brought to the downstream with the water flow. The diamonds are buried in the gravel. Therefore, people are often heard at the time. The story of a diamond on the river or on a river bank.

So what is the original rock of diamonds? In 1870, diamonds were dug in the loess of a farm in South Africa. Since then, the excavation of the diamonds was transferred from the riverbed to the loess. Below the loess is the hard dark blue rock, which is the diamond rock, the kimberlite. Kimberlite is a metabasic ultrabasic volcanic rock formed in the deep part of the earth and containing a large amount of volatile components such as carbonic acid. It is produced by volcanic eruptions. Rocks formed deep in the earth are brought to the surface or shallow parts of the earth by volcanic activity. This magma is mostly produced by rock tubes, so it is commonly called “tube ore” (ie, primary ore). The kimberlite or potassium-magnesium lamprophyre containing diamonds is exposed on the surface of the earth. It is weathered and broken by the action of the earth outside the wind and rain. Under the erosion of the water, the broken original rock and the diamond are brought to the riverbed and even the coastal zone. The product is formed to form an alluvial sand deposit (or secondary deposit).

Scientists have studied the diamonds from different mines in the world and their intermediate inclusion minerals. The formation conditions of diamonds are generally 4.5-6.0 Gpa, equivalent to a depth of 150-200 km, and the temperature is 1100-1500 °C. Although in theory, diamonds can be formed in various periods or stages of Earth's history, most of the mines currently mined are formed between 3.3 billion years ago and 1.2-1.7 billion years. For example, some diamonds in South Africa are about 4.5 billion, indicating that these diamonds began to crystallize deep in the Earth shortly after the birth of the Earth.

In short, diamonds are the oldest gemstones in the world, and their formation requires a long historical process, as evidenced by the fact that diamonds are mainly produced on the ancient stable continents of the earth. In addition, it is said that the impact of the alien planet on the earth produces instantaneous high temperature and high pressure, and diamonds can also be formed.

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