Where is the origin of emery in China? v 1

China is one of the countries with poor diamond mineral resources in the world. Although diamonds have been found in 16 provinces (regions) so far, only Liaoning, Shandong, Hunan and Jiangsu provinces have proven reserves. By the end of 1996, there were 24 proven diamond mines in China, with a total proven diamond reserve of 4746.69kg (equivalent to 23,733,500 ct), of which 2480.23kg (equivalent to 1.240,1.2000 ct) was B+C+D C+D C. The reserves of diamond minerals in China are 4 179 kg (equivalent to 20,897,800 carats), of which diamond minerals are 1924.26 kg (equivalent to 962 1300 carats). Compared with the diamond reserves of some countries in the world, China ranks 9 ~ 10 in the world. However, the reserved diamond producing areas in China are highly explored and utilized. Among them, the proven mineral reserves account for 78.6% of the total reserves, the detailed mineral reserves account for 20.2% of the total reserves, and the general mineral reserves only account for1.2% of the total reserves; The mineral reserves that have been used and can be used in the near future account for 84% of the total reserves, and those that are temporarily difficult to use account for 16% of the total reserves. The proven diamond reserves in China are concentrated after 1964 ~ 1980 and 1985. Although the proven reserves have basically not increased, great progress has been made in vigorously implementing the diamond prospecting plan. If two kimberlite bodies containing diamonds, 109 and 1 10, are found in Liaodong, their industrial value needs to be further ascertained. Diamond and garnet were found in Xiaobuling volcanic rock area, Shandong Province. Diamonds were found in Shandong, Hunan, Liaoning, Jilin, Shanxi, Hebei, Guizhou, Jiangsu, Jiangxi, Xinjiang, Inner Mongolia, Tibet and other 17 provinces (regions). K-Mg lamprophyres have been found in Guizhou, Hebei, Hubei, Hunan, Shanxi and other provinces, among which diamonds have been found in K-Mg lamprophyres in Taoyuan, Hunan. Diamonds-bearing peridotite found in Tibet. It shows that China has geological conditions of both kimberlite and K-Mg lamprophyre, and it is possible to further expand its resources.