High Potential In Kimberley Mine Dumps



Background of the Kimberley Diamond Fields

South Africa’s initial diamond was identified in 1866 in the Northern Province, alongside the Orange River banks. Pursuing the discovery of the diamond, there was a comprehensive diamond rush, with 1000’s of hopeful prospectors flooding the place in look for of alluvial diamonds alongside the river’s banks as well as by the banks of the close by Vaal River.

Within a couple a long time, various significant diamonds had been identified, between them one particular found on a farm called Jagersfontein, which later turned a well-known diamond mine. Soon after a range of discoveries, the place turned known as Beaconsfield, which is currently a suburb of Kimberley. One particular yr right after the discovery of the Jagersfontein diamond, the Kimberley and De Beers pipes had been learned close by Bultfontein, and related discoveries had been manufactured at farms these kinds of as Benaauwheidsfontein, Dorstfontein and Vooruitzicht. A fifth was identified 20 a long time later, known as the Wesselton pipe.

While the pipes had been originally labored by individuals, as the depth of the digging amplified a far more helpful alternative turned required. In 1888 the De Beers Consolidated Mines arrived into becoming, below ownership of Cecil John Rhodes, a mixture of the Kimberley and De Beers Mines.

In 1897, the legal rights to dig the Kimberley Mines had been bought by a new company – Kimberley Mining Confined (KML). They mined until eventually 1914, making use of a approach known as opencast pit mining. This continued until eventually Environment War I, in 1914. Soon after the war finished in 1918, the mine was merely taken care of for the up coming 8 a long time. At that issue De Beers Consolidated took demand, but other than a couple samplings of the mine’s contents, as soon as in the nineteen fifties and once more in the 1980s, the mine has lain dormant. In 2002, the New Diamond Company (NDC) took manage, but without funding the dumps and the mine turned offered. Right now the Meepo Investment decision Consortium, element of the New African mining operations, has the legal rights to both the Caravan Park Dumps and the Kamfersdam Dumps of the Kimberley mines.

City of Kimberley

Kimberley itself was established in 1871 pursuing the diamond discoveries, and the town’s advancement was largely as a result of the various mines created in the bordering place. The town is named right after kimberlite rocks – geologic volcanic rock formations that arise in vertical pipes, and which contain diamonds. Above time, the formations erode and the diamonds are carried downstream by rivers and streams to gather in alluvial diamond deposits. Not all kimberlites contain diamonds, and of those people identified not all are of adequate high-quality or amount to bring in fascination. On the other hand the alluvial diamonds identified are generally of increased high-quality than those people identified inside of the kimberlite pipes – since by the time the alluvial diamonds are learned in their riverbed destinations, very low high-quality stones have been wrecked by the river’s current and only higher high-quality stones continue to be.

One particular of the world’s premier places for diamond mining, the Kimberley place is known currently globally by associates of the sector. It is just about five hundred km from Johannesburg and just about 1,000 km from Cape City.

Deserted Mine Dumps

Right now, in the place bordering Kimberley there are a range of deserted mine dumps that may perhaps have financial likely. 3 of those people dumps are: The Caravan Park dumps, the Kamfersdam dumps and the Eddie Williams Oval dumps. The Kimberley Municipality owns the mining legal rights to these places, which they hope to change one particular day into very low-value housing. Diamond Restoration can be carried out at the plant which is secured, and has both h2o and electricity. There is a great place for disposing of tailings. Kimberley’s infrastructure implies it can be very easily reached by airplane, railway or other implies of public transportation, a wonderful boon to mining the place.

Dependability of Reports

While surveying has been done of late, it is not straightforward to judge the dependability of the resultant report. Principally, both tailings and squander materials have been dumped together, making the grades somewhat unreliable and whilst samples had been taken from particular places, the grades in other places not examined could be vastly distinct. Present day productive diamond recoveries from the Kimberley tailing dumps could be indicative of poor techniques employed originally in the diamond restoration vegetation of the prior century. A further possible explanation is that earlier the materials was ground too coarsely and the smaller stones had been not produced or that the poorer graded materials was dumped alongside with the tailings. As an skilled trader in New Africa Mining, I would say that this material’s diamonds, by way of the procedures of weathering, have been produced and are turning up in wonderful portions, also raising the range of diamonds becoming recovered.

Caravan Park dumps

West of the Kimberly Mine Museum, these dumps hold materials initially mined from the Kimberley mine – one particular of the biggest mines that existed as the 19th century drew to a close – from 1871 until eventually 1914. The diggers mined to an top depth of 1,097 meters. The caravan park sits on top of materials that is between 1 and 2 meters thick, and as it includes some 595,000 tons of tailings, graded 9 cpht, there are approximately fifty three,550 carats well worth of full diamonds found in the grounds below, with the most significant diamond recovered from this dump so much weighing in at just about 23 carats. In 2005, the dumps had been mined for a full of 187 times and 1,122 hours. A full of 74,800 tons had been mined and 4,874.28 carats had been recovered at an regular quality of six.seven cpht. Estimates are that some 42% of the initial dump materials exists, which implies that there is incredible likely for mining and a wonderful return on the financial commitment it will demand to provide these mines to a thoroughly energetic doing the job state.

Kamfersdam dumps

Some 6 kilometers north of Kimberley, the Kamfersdam dumps hold materials from the Kamfersdam mine, initial learned in 1880 and mined until eventually 1914, when Environment War I broke out. By that time it had been mined to 104 meters deep. The Kamfersdam tailings dumps are all situated up coming to the deserted Kamfersdam Mine north of Kimberley. The traditionally head quality of Kamfersdam was 28 carats for each 100 tons (cpht). The two tailings of this dump full 5.2 meters or 5.4 million tons of tailings, which implies there are an inferred .sixty three million full carats at twelve cpht. If 1 million tons are mined below for each yr, there ought to be one more 4 – six a long time in which to make use of this useful resource.  Regardless of the twelve cpht inferred, it is really fairly challenging to confirm the quality of the materials found in this dump, while it can be employed for now. It will be critical to explore the actual quality, as well as the regular benefit for each diamond carat – in particular if it is to be in comparison with the diamonds identified in the Caravan Park dumps so that a accurate estimate of its financial benefit can be ascertained. Above the up coming 4-six a long time,mining these dumps ought to be an extremely worthwhile enterprise, well well worth the financial commitment and a dependable source of cash flow and financial commitment return.

Eddie Williams Oval dumps

Some 3 kilometers north of Kimberley, these are a range of dumps that have really couple resources left inside of and are not well worth talking about substantially additional, so this paper will refrain from delivering any far more aspects at this stage.


Supply by Paul Ekon

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