Wafangdian, Liaoning Province is currently the largest diamond mine in Asia. China discovered kimberlite and diamond primary deposits in Guizhou and Shandong in 1965. 197 1 A primary diamond deposit was discovered in Wafangdian, Liaoning Province. At present, two primary diamond deposits still being mined are located in Wafangdian, Liaoning Province and Mengyin, central Shandong Province.
Shui Yuan, Hunan, the earliest diamond producing area in China. During Daoguang period of Qing Dynasty (1820- 1850), farmers in western Hunan discovered diamonds in Taoyuan, Changde, Qianyang and other places while searching for gold in Yuanshui River basin. At that time, diamonds were mainly used as drill bits to fill porcelain.
1952, a diamond exploration team was established in Hunan province, 1958, and 60 1 mine, the first diamond mining enterprise in China, was established in Changde, Hunan province. Hunan's diamond reserves and output are not large, with an annual output of 20,000-30,000 carats, with a maximum of 50,000 carats, accounting for 60-80% of the gem grade. The largest diamond found weighs 62. 10 carat, 1992 sold abroad.
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Distribution of origin
Diamonds are produced all over the world, and more than 30 countries have diamond resources with an annual output of about 1 100 million carats. The five countries with the highest output are Australia, Zaire, Botswana, Russia and South Africa. The diamond production of these five countries accounts for about 90% of the world's diamond production.
Other diamond producing countries include Congo (DRC), Brazil, Guyana, Venezuela, Angola, Central Africa, Ghana, Guinea, C? te d 'Ivoire, Liberia, Namibia, Sierra Leone, Tanzania, Zimbabwe, Indonesia, India, China and Canada.
The main diamond cutting and grinding centers in the world are Antwerp, Tel Aviv, new york, Mumbai, Thailand and Bangkok. Antwerp has the reputation of "the diamond capital of the world", where about half of the world's diamond transactions are completed. "Antwerp Cutting" is synonymous with perfect cut.
References:
Baidu encyclopedia-diamond