The Catoca diamond mine is the fourth largest diamond mine in the world, and is located in Angola. "Diamond mine" redirects here For the game from PopCap Games also known as Diamond Mine see Bejeweled. In Mineralogy, diamond is the allotrope of carbon where the carbon atoms are arranged in Mining is the extraction of valuable Minerals or other geological materials from the earth usually (but not always from an Ore body Angola, officially the Republic of Angola (República de Angola Pronounced ʁɛˈpublikɐ dɨ ɐ̃ˈgɔlɐ Repubilika ya Ngola is a country in south-central The mine is owned by a consortium of international mining interests, including Endiama (the state mining company of Angola) (32. Endiama (Empresa de Diamantes de Angola is the national Diamond company of Angola and it is the exclusive concessionary of mining rights in the domain 8% ownership), Alrosa of Russia (32. ZAO ALROSA (Закрытое акционерное общество АЛРОСА is Russia 's largest Diamond company Russia (Россия Rossiya) or the Russian Federation ( Rossiyskaya Federatsiya) is a transcontinental Country extending 8%), Odebrecht of Brazil (16. Odebrecht is a Brazilian business conglomerate in the fields of Engineering & Construction and Chemicals & Petrochemicals |utc_offset = -2 to -4 |time_zone_DST = BRST |utc_offset_DST = -2 to -5 |cctld 4%), and the Diamond Finance CY BV Group (16. 8%). The mine is located on a kimberlite pipe. Kimberlite is a type of potassic Volcanic rock best known for sometimes containing Diamonds It is named after the town of Kimberley in South Africa Volcanic pipes are subterranean geological structures formed by the violent Supersonic eruption of deep-origin Volcanoes They are considered
The mine had production of 1. 8 million carats (360 kg) in 2000 and 2. The carat is a unit of Mass used for measuring gems and Pearls Currently a carat is defined as exactly 200 mg (0 2000 ( MM) was a Leap year that started on Saturday of the Common Era, in accordance with the Gregorian calendar. 6 million carats (520 kg) in 2001. Year 2001 ( MMI) was a Common year starting on Monday according to the Gregorian calendar. Catoca management has been actively expanding capacity at the mine, such that the owners plan to extract as much as 5 million carats (1,000 kg) in 2005. Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. The mine's production is 35 % gem quality, compared to a global average of 20 %; the diamonds produced at Catoca have an average value of $75 to $100 USD per carat (375 to 500 $/g). The United States dollar ( sign: $; code: USD) is the unit of Currency of the United States; it has also been Estimated reserves are 60 million carats (12,000 kg).
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