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Small rough diamonds from Russia. Crystals are about 0.7 to 0.9 mm in size. There are a limited number of commercially available diamond mines currently operating in the world, with the 50 largest mines accounting for approximately 90% of global supply. [1]
Debswana controls all diamond mining in Botswana; there are no private diamond mining operations in the country. Combined production of the company's four mines totalled 30 million carats 6,000 kilograms (13,228 lb), nearly a quarter of the world's annual production of around 130 million carats 26,000 kilograms (57,320 lb).
The Jwaneng Diamond Mine is situated within the Orapa Kimberlite Field. [14] In the mine lies the "Jwaneng pipe," [15] a volcanic crater formed during the Permian period. [16] The mine consists of three kimberlite pipes. [17] Diamond-bearing ores are extracted from the vast pit and transported to processing facilities and manufacturing ...
Diamonds from a prospect in the State Line Kimberlite Field, Colorado-Wyoming. Kelsey Lake Diamond Mine is a defunct diamond mine in Colorado, USA.It is located in the State Line Kimberlite District, near the Wyoming border, and consists of nine kimberlite volcanic pipes, of which two were open pit mined.
The Gahcho Kue Diamond Mine Project is a Canadian diamond mine located near Kennady Lake, 280 km northeast of Yellowknife, on federal land.The mine is held by the Gahcho Kue Joint Venture (De Beers 51%, Mountain Province Diamonds Inc. 44.1% and Camphor Ventures 4.9%). [8]
Diamond mining by country — topics about the seeking and mining of diamond in countries. Subcategories. This category has the following 2 subcategories, out of 2 ...
It prospects, develops, mines and trades diamonds from primary and secondary deposits, identified in the region of Cuango River, in the north-eastern region of Angola that produces good quality stones. Bulk sampling of river terrace gravels in the vicinity of the Ganzo, Tázua and Ginge river diversions have revealed economic diamond grades.
Alrosa (Russian: АЛРОСА) is a Russian group of diamond mining companies that specialize in exploration, mining, manufacture, and sale of diamonds. The company leads the world in diamond mining by volume. [2] [3] Mining takes place in Western Yakutia, the Arkhangelsk region, and Africa. Alrosa is Russia's leading diamond mining and ...