diamond mining details

Diamond Mining Methods | Diamond Museum Cape Town

A secondary crusher, known as a roll-crusher, may also be used to reduce the size of the ore even further. Stage 2 – Scrubbing. In this stage, the ore are scrubbed to remove loose excess material and is screened. Material smaller than 1.5mm is discarded because it is too costly to extract diamonds from such a small piece of ore.

NAMDEB

Our diamond exploration and mining takes place along the south-west coast, offshore in the shallow waters and inland areas of Namibia's //Karas Region. Diamonds extend into the surf zone as well as shallow marine areas and the mainland-based operations are found in the town of Oranjemund and satellite mines along the Orange River.

Cullinan Diamond Mine, Gauteng, South Africa

The Cullian Diamond mine is undergoing a major expansion plan. The Cullinan Diamond mine is an open-pit mine that produces 25% of the world's gem quality diamonds. Image courtesy of Vaiz Ha. The Cullinan diamond mine is located in the Gauteng province of South Africa. The site is situated 40km east of Pretoria in Cullinan.

Namibia – De Beers Group

Diamonds are found in raised Pleistocene beaches from 25m below mean sea level to more than 30m above. The ancient bed of the Orange River, extending inland about 50km, is an important source of diamond-bearing gravels. The vigorous sorting action of wind and waves, pushing diamond-bearing gravels north along the coast, has created a natural ...

Debswana Diamond Mines

Debswana is the world's leading producer of gem diamonds, contributing about 30% of world output by value from four mines. Following detailed exploration by De Beers in the 1960s, the …

Letšeng Diamonds

Letšeng Diamond Discovery Centre Now Open. Come and visit the thrilling interactive exhibition that tells the story of diamonds in general, diamonds in Lesotho and most importantly, the Letšeng Diamond Mine. Please call the Curator on Tel: +266 22221800 or send her a message on the Email address [email protected] to make an …

Our Mines – De Beers Group

Our Mines. Our global approach to diamond mining spans two continents and four countries – Botswana, Canada, Namibia and South Africa. Diamonds offer huge economic and social benefits for the countries where we operate. We work closely with local governments and communities, supporting their industries and helping deliver the …

Anjin Mining

To be the leading producer and preferred supplier of conflict free and premium quality rough diamonds in the region and beyond. – Our Vision To provide our local, regional and international clients with the best run …

Diamonds: Formation, grading and other facts | Live Science

Historically, the epicentre of diamond mining activity was in Africa, but more recently diamonds have been found in many other parts of the world according to geologist Hobart M. King of Geology.

Welcome to Debswana

Welcome to Debswana. DEbswana Diamond CO mpany. Debswana Diamond Company (Pty) Limited (Debswana) was established in 1969 and is one of the world's foremost diamond producer by value and volume. The company operates four diamond mines: Jwaneng, Orapa, Letlhakane and Damtshaa Mines (the latter three are grouped under …

Venetia Diamond Mine

The Venetia diamond mine, which opened in 1992, is De Beers Consolidated Mines' flagship operation. Situated 80km from Musina (formerly Messina) in Limpopo Province, and involving an investment of …

Inside the Democratic Republic of Congo's Diamond Mines

August 27, 2015 6:00 AM EDT. In the Democratic Republic of Congo, almost all diamond mining is done by hand. It's a labor-intensive process that requires hauling away layers of dirt and rock ...

Cullinan Mine ♦ Petra Diamonds

Cullinan Mine is Petra's flagship asset and a world-class kimberlite, famous for being home of the largest gem diamond (3,106cts) ever recovered as well as being the world's most important source of blue diamonds. Discovered in 1902, Cullinan Mine has yielded many of the Earth's most desirable and iconic diamonds, and is renowned for very ...

Contact Us ♦ Petra Diamonds

We focus on the highest margin section of the diamond pipeline – the upstream, involving the mining, processing, sorting and sale of rough diamonds. Our Business Our Operations Open submenu for link Our Operations

Where Are Diamonds Mined? Countries That …

A world map showing the countries where gem-quality and industrial diamonds are mined. Graphs, tables and charts showing the geography and history of diamond mining and natural diamond production across the world.

How are diamonds mined? A look at the global …

How are diamonds mined? The extractive industry employs a range of techniques for mining diamonds, starting with conventional open-pit operations. The …

Debswana Diamond Mines

July 28 2004. Debswana Diamond Mines. Debswana is the world's leading producer of gem diamonds, contributing about 30% of world output by value from four mine. Location. Eastern and southern Botswana. …

Diamond Mining Methods | Diamond Museum Cape …

Marine mining involves extracting diamonds from the seabed, hundreds of meters under water. The earliest form of marine mining entailed shore diving, where a swimmer would …

Debswana Jwaneng Mine

Jwaneng Mine is one of the richest diamond mines in the world. The mine became fully operational in August 1982, when it was officially opened by the then President of Botswana, His Excellency Sir Ketumile Masire. …

The world's top 10 biggest diamond mines

Russia. The Russian Aikhal mine, meaning "fame," is the largest diamond mine in the world. It is located in Sakha, Yakutia, to the east of the Russian Republic. As of July 2018, Aikhal contains an …

Ranked: The World's Top Diamond Mining Countries, by Carats

Ranked: World Diamond Mining By Country, Carat, and Value. Only 22 countries in the world engage in rough diamond production—also known as uncut, raw …

Diamond | Definition, Properties, Color, Applications,

diamond, a mineral composed of pure carbon. It is the hardest naturally occurring substance known; it is also the most popular gemstone. Because of their extreme hardness, diamonds have a number of important industrial applications. Diamond (gem) country. mine production 2006 (carats)*. % of world mine production.

Letšeng Diamonds

Letšeng Diamond Mine is situated high in the Maluti Mountains of Lesotho. Letšeng Diamonds (Pty) Ltd holds the mining lease granted in 1999 by the Government of Lesotho. Letšeng Diamonds House, Corner Kingsway …

Home ♦ Petra Diamonds

As a leading supplier of gem quality rough diamonds, we believe that Earth's rare and precious legacy can, through responsible mining, create abundant outcomes for our people, communities, investors, customers and all other stakeholders, giving expression to life's special moments

Debswana Orapa Mine

Orapa is a conventional open pit mine, situated 240 km west of Francistown. The Mine was discovered in 1967 by a team of De Beers Geologists led by Manfred Marx. It became fully operational in July 1971 following an official opening by the then President of Botswana, His Excellency Sir Seretse Khama. Currently Orapa is mining at a depth of 305 ...

About SSC Diamond | SSC Diamond

SSC Joyspring is a South African incorporated mineral exploration and development company focused extensively on diamond projects in South Africa and holds a new order mining right for the two diamond mines Frank Smith and Loxton Dal. SSC Joyspring is fully B-BBEE equity compliant with the requirements of the Mineral and Petroleum Resources ...

Koffiefontein Mine

The Koffiefontein mine is the largest kimberlite diamond mine in the world by average value a carat. The Koffiefontein mine neighbours some of Kimberley's famous mines. The Koffiefontein mine has an estimated life of more than 20 years. The mine holds 0.3mt of proven and 8.8mt of probable reserves. The mine produces high-value diamonds.

Murowa Diamond

RZM Murowa Mine is a 24-hour open pit mining operation. Production began in 2004. Its current name-plate capacity is around 1.2 million carats per annum of predominantly white, gem-quality diamonds. We produce reasonable quantities of large 'special' stones.

South Africa – De Beers Group

De Beers Group began a sampling programme in 1969 to locate the source of these alluvial diamonds. Viable kimberlite pipes were discovered in 1980. Work on the mine started in 1990 and full production was achieved in 1993. Open-pit operations at Venetia have ended and the mine is transitioning to underground mining, which is expected to extend ...