%0 Dataset
%T Diamonds of Siberia
%J Arid Land Ecology and Resources Science Data Center
%I Arid Land Ecology and Resources Science Data Center(data.dcxjegi.cn)
%U https://data.dcxjegi.cn/portal/metadata/b9e89b70-9213-4ce1-b747-d64c97da8c0e
%W NCDC
%R 10.12389/ariddc.01992
%A Documentation Information Center
%K ;
%X Diamond is the hardest of all known minerals and man-made alloys. Diamond is widely used in the field of technology because of its unparalleled hardness and resistance to chemical agents and wear. Diamond is a first-class gem and is used in the jewelry industry.At present, it is difficult to find which industrial sector does not use diamond to some extent. They are particularly widely used in metal processing, stone cutting and abrasive industries, as well as drilling operations in hard rock formations. The use of diamond can speed up the production process many times, improve product quality and product accuracy. Therefore, although great achievements have been made in the manufacture of hard and superhard alloys, the industrial demand for diamonds is still growing year by year.With the increasing demand for industrial diamond, its world mining volume is also growing. By the beginning of World War II (1940), it had exceeded 14.4 million carats. During the war, diamond mining fell to 9-11 million carats, but returned to the pre war level in 1949. Especially in the past five years, diamond mining has increased rapidly. In 1954, the world's diamond mining volume reached 20.4 million carats, of which 16.8 million carats, or about 82%, were industrial diamonds.The above figures fully show how important industrial diamond has become in recent years. China's industry is also in urgent need of industrial diamond.Due to the low content of diamond in placer, the prepared diamond raw material base in Ural region cannot guarantee the development of large-scale diamond mining industry. The diamond mining organized in the west slope deposit of central ural during 1941-1944 is not large enough to meet the demand of domestic industry for technical diamonds. However, it is very difficult to obtain diamonds from abroad due to the obstacles set by capitalist countries that control the world diamond market. Therefore, the application of diamond in the Soviet Union was limited. Many in