How much do you know about the history of diamond development?
Humans have a long history of understanding and developing diamonds. Diamonds were discovered in ancient India as early as the 3rd century BC. Since the beginning of the Year of the Christianity, diamonds have always been a symbol of wealth, power and status of the country and the royal family and the nobles. The world's diamond mineral resources are not abundant. In 1996, the world's proven diamond reserves were only 1.9 billion ct, which is far from meeting the needs of gemstones and industrial consumption. Since the 1960s, synthetic diamond technology has emerged, and by the 1990s, synthetic diamonds have almost completely replaced industrial natural diamonds, accounting for more than 90% of the world's industrial diamond consumption (more than 99% in China). ). The main diamond producers are Australia, Russia, South Africa, Botswana and Zaire. The distribution of world diamonds is mainly controlled by the De Beers Central Sales Organization. China discovered diamonds about 200-300 years ago. In the Ming and Qing Dynasties (about the 17th century), farmers in Hunan Province found diamonds in river sand. The geological exploration of diamonds began in the 1950s. So far, there are 6 famous diamonds found in China with a weight greater than 90ct, such as “Changlin Diamond†weighing about 158ct. China's diamond mineral resources are relatively scarce. Through nearly 50 years of geological work, only in Liaoning, Shandong, Hunan. And the four provinces of Jiangsu have proved the reserves. By the end of 1996, China had retained 20,897,800 ct of diamond reserves, which did not occupy an important position in the world. In terms of quality, China's Liaoning Province produces diamonds with excellent texture, and gem-quality diamonds account for about 70% of total production. Since the 1990s, China's annual output of diamonds is about 10 to 150,000 ct, which is far from meeting the needs of domestic consumption. More than 99% of the industrial diamonds required by the country depend on domestically produced synthetic diamonds. In 1997, China's synthetic diamond production reached 440 million ct, and natural industrial diamonds accounted for a very limited proportion of consumption. Diamond ore has two types of magmatic rock and sand mine. It is known that there are three kinds of diamond-bearing magmatic rocks: kimberlite, potassium-magnesium lamprophyre and peridotite. The kimberlite type and potassium-magnesium lamprophyre type have industrial significance. According to the British "Daily Mirror" reported on September 17, 2012, the Russian Kremlin declared that the crater formed by the collision of an asteroid discovered in the Siberian region contains abundant diamond resources, and the storage capacity is sustainable for 3,000 years. . The crater, called the Poppi Gap, is about 100 kilometers in diameter and contains tens of billions of carats of diamonds, more than the world's existing diamond reserves. According to reports, the reason why Poppi Gap has not been developed for so many years is because people in the Soviet era spent more energy on creating artificial gemstones. Diamond expert Gennady Nikitin pointed out that "the large reserves of these diamonds are shocking, and it is unclear what impact their development will have on the market price of diamonds." Gennadi added, and manufacturing. Compared to jewellery, the value of these diamonds will be more reflected in industrial use. women jeans Guangdong Merican Industrial Co.,Ltd , https://www.gdmerican.com.jpg)