Kimberlite Diamond Mine

All About the Kimberley Diamond Mine in South Africa

Kimberley, South Africa, is home to the world’s largest diamond mine, also known as the “Big Hole.”Dug by humans and so large it is visible from space, the pit has yielded some of the world’s largest diamonds and made the De Beers name famous worldwide.

Kimberlite Deposits and Geology Formation of Diamonds

The geology of Diamonds consist of crystalline carbon although a significant proportion of diamonds are derived from placid deposits i.e. hosted in sediments, placid’s are secondary deposits and all diamonds were at one time or another hosted by kimberlite igneous rocks. The name Kimberlite comes from the town of Kimberley which grew up around the prolific diamond mines in northern South ...

How Diamond Mines are Formed, How We Find Them, and …

Although diamonds have been discovered in many of the kimberlites, no individual kimberlite pipe has produced an economically viable diamond mine. The Magic Formula The information gathered from sampling allows a miner to determine the viability of the project using a simple formula.

Breaking kimberlite to look for diamonds Aug 4 2018 - …

4-8-2018· Where to find diamonds, How to identify rough diamonds and how to recover raw diamond crystals - Duration: 43:30. Chris Ralph, Professional Prospector 259,395 views

In Search of Diamonds: An Introduction to Kimberlite ...

The diamonds are removed using a sieve and sorted based on size. If the kimberlite is sufficiently diamondiferous, based on mircrodiamond analysis, a mini-bulk sample (more drilling) will usually be done to obtain an initial estimate of the grade. Diavik Diamond Mine, Northwest Territories, Canada. Image CC

Kimberlite Pipes: What They Are and How They're Formed | …

Kimberlite pipes: How they form. As mentioned, kimberlite pipes are believed to have been formed by deep-source volcanic eruptions. Jeffrey Post, a diamond expert at the Smithsonian, has described ...

The world's top 10 biggest diamond mines

The Jwaneng diamond mine in Botswana is an open-pit mine located 160 miles south-west of Gaborone. It was estimated to contain proven and probable diamond reserves of 166.6Mct as of December 2018. Owned by Debswana Diamond Company, a 50:50 partnership between De Beers (a part of Anglo American Group) and the Government of Botswana, Jwaneng is considered to be the world’s richest diamond mine ...

Kimberlite-hosted diamond deposits of southern Africa: A ...

In this paper, 34 kimberlite mines are reviewed with regard to their geology, mantle xenolith, xenocryst and diamond characteristics and production statistics. These mines varygreatly in size, grade and diamond-value, as well as in the proportions and types of mantle mineral suites that they contain. They include some of the

Kimberley, Northern Cape - Wikipedia

Kimberlite is a diamond-bearing blue ground that sits below a yellow colored soil. [3] : 34 The largest, The Kimberley mine or "Big Hole" covering 170,000 square metres (42 acres), reached a depth of 240 metres (790 ft) and yielded three tons of diamonds.

Breaking kimberlite to look for diamonds Aug 4 2018 - …

4-8-2018· Where to find diamonds, How to identify rough diamonds and how to recover raw diamond crystals - Duration: 43:30. Chris Ralph, Professional Prospector 259,395 views

Kimberlites: Earth’s Diamond Delivery System | Gems & …

Figure 1. Open-pit diamond mines in kimberlite rock. Mining operations remove as much kimberlite as possible and leave deep pits that outline the shape of a “kimberlite pipe.” A: The Cullinan mine started as an open-pit operation and transitioned to underground mining in …

Kimberlite - Wikipedia

Kimberlite occurs in the Earth's crust in vertical structures known as kimberlite pipes, as well as igneous dykes.Kimberlite also occurs as horizontal sills. Kimberlite pipes are the most important source of mined diamonds today. The consensus on kimberlites is that they are formed deep within the mantle.Formation occurs at depths between 150 and 450 kilometres (93 and 280 mi), potentially ...

Diamonds in Colorado! The Stateline Kimberlite District ...

Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA While small compared to the great diamond-bearing kimberlite pipes of the African continent or more recent discoveries in northern Canada, Colorado is nonetheless endowed with a relatively substantial kimberlite district, many of which contain diamonds.With a history of exploration spanning a mere ~45 years, the ...

How We Find Diamond Sources: Kimberlite and …

This means that total kimberlite occurrences are tens of thousands of hectares of land-mass, compared to 13 billion hectares of land on the planet, of which 7% is located within Archean cratons . Given that less than 1% of kimberlites will yield an economically-viable diamond deposit, finding a viable diamond mine is a daunting task.

Mothae Diamond Mine (Lucapa Diamond Company) - …

Mothae diamond project development history. The Mothae kimberlite mine was discovered by Basutoland Diamonds in 1961. Lucara Diamond, a company based in Canada, undertook the development of the mine in 2009 and carried out trial mining in November 2010.

Kimberlite-hosted diamond deposits of southern Africa: A ...

In this paper, 34 kimberlite mines are reviewed with regard to their geology, mantle xenolith, xenocryst and diamond characteristics and production statistics. These mines varygreatly in size, grade and diamond-value, as well as in the proportions and types of mantle mineral suites that they contain. They include some of the

Canadian Diamond Mines: The Surprise in Northern Canada

Victor Diamond Mine. The fifth Canadian diamond mine to open was the Victor Mine located in the James Bay Lowlands of Northern Ontario, about 50 miles west of Attawapiskat. It is an open-pit mine owned by De Beers and the first diamond mine in Ontario. Diamonds were produced from one of sixteen diamondiferous kimberlite pipes on the property. [5]

There's a Plant That Shows You Where Diamonds Are …

Find kimberlite, and you’ve got a much better chance at finding diamonds. Now, a geologist has an even easier way to find diamonds—just look for a palm-like plant called Pandanus candelabrum .

The Marsfontein Diamond Mine -A Case History

The Marsfontein Diamond Mine -A Case History Mike Scott. MSA Projects (Pty) Limited Chris Jemdngs. SouthernEra Resources Limited Abstract A stream sediment anomaly found in February 1993, south east of Mokopane, was systematically followed up using kimberlite indicator exploration sampling techniques. This

Mining Diamonds in the Canadian Arctic: The Diavik Mine ...

The discovery of kimberlite pipes there in the early 1990s led to the development of several major mines. Diamond-bearing kimberlite deposits that can be mined economically are noteworthy, since only about 50 such occurrences have been found worldwide since the 1870s, mainly in Australia, Angola, Canada, Russia, and South Africa (Janse, 2007).

Diamonds in Colorado! The Stateline Kimberlite District ...

Diamonds in Colorado! The State Line Kimberlite District, Colorado & Wyoming, USA While small compared to the great diamond-bearing kimberlite pipes of the African continent or more recent discoveries in northern Canada, Colorado is nonetheless endowed with a relatively substantial kimberlite district, many of which contain diamonds.With a history of exploration spanning a mere ~45 years, the ...

(PDF) Kimberlites: From Deep Earth to Diamond Mines

This issue summarises current thinking on kimberlite petrology, geochemistry, and volcanology and outlines the outstanding questions on the genesis of kimberlites and associated diamond mines ...

30 Years of Diamonds in Canada – 12th International ...

Diamond exploration work in the Northwest Territories and Nunavut in the early 1990’s resulted in other significant discoveries. Approximately 160 km north of Ekati and Diavik, the Jericho Kimberlite was discovered in 1994 by Canamera Geological Ltd. Tahera Diamond Corporation operated the Jericho Mine in 2006-2007.

Mothae Diamond Mine (Lucapa Diamond Company) - …

Mothae diamond project development history. The Mothae kimberlite mine was discovered by Basutoland Diamonds in 1961. Lucara Diamond, a company based in Canada, undertook the development of the mine in 2009 and carried out trial mining in November 2010.

Diamond in kimberlite (Mir Kimberlite Pipe, Malo …

1-5-2010· Diamond crystal in kimberlite from the mid-Paleozoic of Siberia, Russia. (Stan & Pris Woollams collection) A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical.

Diavik Diamond Mine - Mining Intelligence and News

The mine plan is built on four diamond-bearing kimberlite pipes. Three of the pipes are in production and the fourth is in development. The Diavik Diamond Mine has operated continuously since production began in 2003. The current mine life is anticipated to extend to 2025.

The Marsfontein Diamond Mine -A Case History

The Marsfontein Diamond Mine -A Case History Mike Scott. MSA Projects (Pty) Limited Chris Jemdngs. SouthernEra Resources Limited Abstract A stream sediment anomaly found in February 1993, south east of Mokopane, was systematically followed up using kimberlite indicator exploration sampling techniques. This

There's a Plant That Shows You Where Diamonds Are …

Find kimberlite, and you’ve got a much better chance at finding diamonds. Now, a geologist has an even easier way to find diamonds—just look for a palm-like plant called Pandanus candelabrum .

Diamonds In The Montana Rough - CBS News

19-10-2004· It was kimberlite, the molten rock in which diamonds are found, and preliminary tests had yielded a microscopic diamond. If more are found at the …