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South Africa
Voorspoed Mine

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 Location:
28 km NW from Kroonstad, South Africa

  Regional Office:
Cnr. Crownwood Road and Diamond Drive Theta/Booysens Reserve Private Bag X01, Southdale 2193
Johannesburg
South Africa
Phone  ...  Subscription required
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  • Overview
  • Owners
  • Geology
  • Mining
  • Processing
  • Production
  • Reserves
  • Personnel
  • Filings & News

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Overview

StatusClosing / Closed
Mine TypeOpen Pit
Commodities
  • Diamond
Mining Method
  • Truck & Shovel / Loader
Processing
  • Dense media separation
  • X-Ray sorting
Production ceased in Q4 2018 and mine closure processes are underway. Economic assumptions will be re-assessed in 2020.


Owners

Source:
CompanyInterestOwnership
Anglo American plc. 62.9 % Indirect
Anglo American owns 85% of De Beers, the world’s leading diamond company. The remaining 15% of De Beers is owned by the Government of the Republic of Botswana (GRB).

The 74% interest in De Beers Consolidated Mines (DBCM) is held indirectly through De Beers Société Anonyme (De Beers). The 74% interest represents De Beers’ legal ownership share in DBCM. For accounting purposes De Beers consolidates 100% of DBCM as it is deemed to control the BEE entity which holds the remaining 26%. The Group’s effective interest in DBCM is 85%.

Deposit Type

  • Kimberlite


Summary:

The Lower Cretaceous Voorspoed kimberlite pipe is one of the six pipes which comprise the Kroonstadt Kimberlite Cluster located in the central region of the Kaapvaal Craton (South Africa). The pipe was initially described as a typical South African tuffisitic kimberlite (Skinner, Marsh, 2004) and later on as a pipe with a 2 km deep crater filled by pyroclastic sedimentation and resedimentation of kimberlite and country rock debris (Howarth, Skinner, 2012) due to the presence of bedded volcaniclastics at a depth of 2 km from the original land surface.


Mining Methods

  • Truck & Shovel / Loader


Summary:

De Beers Voorspoed mine is an open-pit kimberlite mine that is situated 30 kilometres northeast of Kroonstad in the Free State, South Africa.


Crushing and Grinding


Processing

  • Dense media separation
  • X-Ray sorting

Source: Subscription required

Summary:

The plant includes the installation of high pressure rolls crushers to replace the relatively dated rod milling process used before, and two new secondary crushers, replacing the older technology cone crushers. The efficiency improvements have been achieved with the addition of a coarse Dense Medium Separation (DMS) Plant and by converting the existing DMS plant to a fines DMS plant, thus allowing for a more efficient DMS process. This will feed correctly prepared diamond bearing kimberlite to a new final recovery plant that includes the latest X-Ray diamond recovery technology. Much of the technology installed at Finsch was developed by DebTech, the De Beers Group’s technology research and manufacturing division based in the south of Johannesburg.


Production:

CommodityUnits20182017201620152014
Diamond k carats  ......  Subscription required606649704711
All production numbers are expressed as mineral.
Subscription required - Subscription is required.


Reserves at December 31, 2019:

CategoryTonnage CommodityGradeContained carats
Measured & Indicated 1.9 Mt Diamond 26.9 cpht 0.5 M carats
Inferred 18.5 Mt Diamond 19 cpht 3.5 M carats


Heavy Mobile Equipment:

Mine Management:

Job TitleNameProfileRef. Date
....................... Subscription required ....................... Subscription required Subscription required Apr 15, 2020
Subscription required - Subscription is required.


Corporate Filings & Presentations:

DocumentYear
................................... Subscription required 2019
................................... Subscription required 2019
................................... Subscription required 2018
................................... Subscription required 2018
Annual Report 2017
Other 2017
Year-end Mineral Reserves 2017
Annual Report 2016
Year-end Mineral Reserves 2016
Annual Report 2015
Year-end Mineral Reserves 2015
Corporate Presentation 2013
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Aerial view:

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