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flower of life silver jewelry wholesale The history of diamond discovery

Postat pe de Kingjy

Diamonds are composed of carbon elements and are the simplest gemstones of all gemstones in nature. They are crystals crystallized under high temperature and high pressure underground.

The occurrence of diamonds can be divided into two categories: one is the primary diamond ore, which is a tubular vein formed by the movement of the earth’s crust that brings diamond-containing magma to the surface and cools down; the other is diamond placer, which is formed by Mineral deposits containing diamonds are deposited by the weathering of the surface, which washes diamonds and other minerals away from the original veins.

In the history of the discovery of diamond deposits, the early discovered diamond deposits were mainly placer deposits. With the continuous development and progress of science and technology, more and more primary diamond deposits have been discovered. The primary diamond ore can be divided into two types: kimberlite type and potash lamprophyre type. The latter was first discovered in Western Australia in 1978.

It is also a very complicated matter to sort out diamonds from the large diamond-containing ore mined. According to statistics, to produce 1 cut and polished 1ct diamond, about 250t of ore must be excavated from the original diamond ore, which shows the preciousness of diamonds.

În prezent, there are about 30 countries producing diamonds in the world, mainly including Australia, Congo (DRC), Botswana, Rusia, Africa de Sud, Namibia, Ghana, Angola, Sierra Leone, Lesotho, Brazil, Tanzania, Central African Republic, Liberia, Congo (Cloth), Guinea, Venezuela, Guyana, Indonesia, China, etc..

Cu toate acestea, the earliest country producing gem-quality diamonds in history is India. Many diamonds with a long history and legendary color are also produced in India, where diamond resources are all derived from placers, and diamond resources in these areas have been basically exhausted. .

18 In the 1930s, Brazil became the world’s major diamond producer after India. The discovery of diamonds in Brazil is closely related to the gold rush. Early gold prospectors often found some shiny gravel at the bottom of the gold pan. They left some of the big ones as a bargaining chip when playing cards, and threw the small ones away. De fapt, these shiny gravels may be Diamonds, just because people at that time did not realize this.

Just as the diamond production in Brazil was gradually decreasing and the resources tended to be exhausted, a huge primary ore of all Bethleite diamonds was discovered on the Vaal River in South Africa. South Africa is the main producer of big diamonds in the world. According to statistics, there are currently more than 60 diamonds larger than 400ct found in the world, and more than half of them are found in South Africa. South Africa now produces 8.2-10 million carats of diamonds annually, ranking fifth in the world.

 

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Producătorul de bijuterii OEM/ODM Proiectarea personalizată propriile tale bijuterii

Să începem : mo@kingjy.com

 

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