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After the end of the civil war in the Republic of Sierra Leone in 2002 and once the country had joined as a participant of the Kimberly Process Certification Scheme in 2003, Koidu Limited was formed in 2003 and was the first commercial diamond mining company to invest in the development of the resource sector in the Republic of Sierra Leone, focusing initially on the kimberlite deposits at Koidu.
Exploration techniques for kimberlites primarily hinge on the identification and analysis of indicator minerals associated with the presence of kimberlite pipes and their potential diamond content. Sediment sampling is a fundamental approach, where kimberlite indicator minerals (KIMs) are dispersed across landscapes due to geological processes ...
Kimberlite Diamond was founded in 1995 and the brand is China's first diamond-based retailing jewelry company. [1] In 1997, the company reached a "Quality Appraisal Agreement" with the HRD (Belgian High-level Diamond Council). [2]
The Murowa site's possibilities were first realized in 1997 when three diamond-bearing kimberlite pipes were discovered; over a period of three years of study, the two larger pipes have been determined to be economically feasible as mines. Construction of mine facilities was completed in late 2004.
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.
Diavik Diamond Mine is an industrial complex set in a remote, subarctic landscape. It consists of four kimberlite pipes associated with the Lac de Gras kimberlite field and is located on an island 20 km 2 (7.7 sq mi) in Lac de Gras informally known as East Island.
Mining in Angola is an activity with great economic potential since the country has one of the largest and most diversified mining resources of Africa. Angola is the third largest producer of diamonds in Africa and has only explored 40% of the diamond-rich territory within the country, but has had difficulty in attracting foreign investment because of corruption, human rights violations, and ...
Udachny Mining and Processing Division (MPD) is a business unit of ALROSA located in Western Yakutia. The division develops the Udachnaya and Zarnitsa kimberlite pipes, Dellyuvialnaya and Ruchey Piropovy placer deposits. Its share in ALROSA Group’s production totaled 11% in 2016.