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Historical Reading List: Alluvial Diamonds from Namibia

The Origin of the German South-West Africa Diamonds, P.A. Wagner, Transactions of the Geological Society of South Africa, ... No. 11, p. 802, (1911). A brief description of alluvial diamond mining is provided. Facts about the Diamond Fields of German ... and then using vacuum equipment along the deep channels and gullies in …

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PCF Engineering

PCF Engineering boasts over 30 years of experience in building mining equipment. This, along with continuous product improvements, makes PCF your first choice when …

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Focus on: Diamonds, as 2,492-Carat Stone Found in Botswana

There is a third method: alluvial diamond mining, which involves extracting diamonds from riverbeds and coastal areas, with Angola being a leading nation on this …

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Lucapa Diamond soars on 48% rise in resources at Angola …

Resources at Lulo mine in Angola increased to 228,000 carats as of December 31, up from 153,870 carats the previous year.

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SOUTH AFRICA'S ALLUVIAL DIAMOND DEPOSITS

Global Diamond Network 11 South Africa Alluvial Diamond Mining Legislation Challenges 01 Lack of Policy consistency 02 RSA is a 'no-go' for mining investors (see latest Fraser Institute Report) 03 Mining right applications –slow processing + awards, fronting, middle-men, 'use or lose' should apply 04 B-BBEE requirements –expensive ...

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Diamond Processing | Equipment, Process Flow, Cases

Other Mining Equipment. Attrition Scrubbers; Belt Scales ... seashore and the offshore continental, form alluvial diamond deposit. The first diamond found in South Africa came from an alluvial deposit. ... (dry land diamond deposit mining). Mining of wet alluvial diamond deposits generally uses two methods of excavation dredge and river ...

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Aquadredge | Alluvial diamond equipment

AquaDredge is a company striving to inject a modern approach into the alluvial diamond mining industry. Since the company's inception, continual research and development efforts have resulted in an ever expanding product line, aiming to provide an increase in efficiency for traditional alluvial diamond mining operations.

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Historical Reading List: The Diamond Fields of …

This article provides a review of the alluvial diamond mining operations. South Africa and the International Diamond Trade: Part One – Sir Ernest Oppenheimer, De Beers and the Evolution of …

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A methodology for conducting national-scale alluvial diamond …

In May of 2000, a meeting was convened in Kimberley, South Africa, by representatives of the diamond industry and leaders of African governments to develop a certification process intended to assure that export shipments of rough diamonds were free of conflict concerns. Outcomes of the meeting were formally supported later in …

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EXPLOITING RSA'S ALLUVIAL DIAMOND DEPOSITS …

Global Diamond Network 46 South Africa Alluvial Diamond Mining Legislation Challenges 01 Lack of Policy consistency 02 RSA is a 'no-go' for mining investors (see latest Fraser Institute report) 03 Mining right applications –slow processing / awards, fronting, middle-men, 'use or lose' should apply 04 B-BBEE requirements –expensive ...

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South Africa's Small-Scale Diamond Mining Dilemma

Those include the Riet River, which drains diamonds from the Koffiefontein and Jagersfontein kimberlites. Eruptions from the kimberlites in Kimberley contributed to the alluvial deposits along the Vaal River, and the Lesotho kimberlites — Letšeng and Kao among them — fed into the deposits along the Orange before its point of confluence with …

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Pumps maker targets diamond processing

As the diamond mining industry faces challenges such as resource depletion, increasing operational costs and competition from synthetically made diamonds, heavy-duty centrifugal slurry pump ...

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A review of the alluvial diamond industry and the gravels …

The liberalization of the diamond marketing system led to increased diamond prices and this, coupled with the devaluation of the Rand against the US$ during late 2001 and 2002, resulted in a significant increase in onshore alluvial diamond production in South Africa. Inland, alluvial diamond production reached a recent peak …

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Provenance history of detrital diamond deposits, West Coast …

The West Coast of southern Africa is host to the world's largest known detrital diamond deposits (Fig. 1).Together these deposits have produced in excess of 120 million carats of diamonds, with ~50 million carats from mines in Namaqualand, South Africa (e.g. Gurney et al. 2005; Oosterveld 2003; Bluck et al. 2005).Diamonds were …

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Brazilian Diamonds: A Historical and Recent Perspective

As Africa emerged as the major diamond source in the 1870s, Brazilian mining decreased dramatically within a decade, principally because of the low grade of the alluvial deposits. According to Kimberley Process statistics, Brazil produced 31,825 carats in 2015, although this figure is likely a low estimate considering the lack of accurate ...

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Kimberlites: Earth's Diamond Delivery System

Today, secondary diamond mining still occurs in many areas of Sierra Leone, Brazil, Angola, Namibia, and even along the seafloor where rivers drain into the oceans. ... Between 1866 and 1869, the first …

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A review of the alluvial diamond industry and the …

opportunity for increased alluvial diamond mining in South Africa. As a result, there was a noticeable ... earthmoving machinery, gravel processing and diamond recovery equipment. Later, during ...

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Marine & River Diamond Mining Equipment

Marine and River Diamond Mining Equipment Manufacturers. 50 years of combined experience in both the mining of Alluvial diamonds and the manufacturing of mining …

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Alluvial Mining: Gold, Diamonds and Platinum | INN

Additionally, Diamcor Mining (TSXV:DMI,OTCQB:DMIFF) has identified two high-grade alluvial diamond deposits at its Venetia project in South Africa. Alluvial mining for diamonds is similar to ...

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A global rise in alluvial mining increases sediment load in …

Mining in rivers has been a common method for the extraction of gold, diamonds and other precious minerals for centuries 7,8.We define such river mineral mining, often called alluvial mining, as ...

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Dredging Equipment for Gold & Diamond Mining …

Alluvial Pumps is regarded as one of South Africa's leading manufacturers and exporters for Alluvial diamond and gold dredging equipment. Our expertise lies in: – gold dredging and recovery of gold; …

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Appropriate Process Technologies | Small to …

small scale and medium-to-large scale mineral processing equipment. cost effective and efficient solutions for alluvial, eluvial, hard rock, tailings and combinations of feed types. apt specialise in gravity concentration, …

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Aquadredge | Alluvial diamond equipment

AquaDredge is a company striving to inject a modern approach into the alluvial diamond mining industry. Since the company's inception, continual research and development …

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Investigating The Origin Of Alluvial Diamonds In …

Alluvial mining in the area started in the early 19 th century. Renewed interest in the mining of alluvial diamonds was generated by the El Niño related drought of 1974 when many farmers turned to …

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Diamond Mining Methods | Diamond Museum Cape Town

The first diamonds discovered in South Africa were from alluvial deposits. Today, industrial alluvial mining involves building a large wall to collect the water in one area. Diamonds are often found in the gravel layer, which collects under layers of other material, such as mud, clay and underwater plant-life.

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South Africa's alluvial diamond miners hampered by lack

The alluvial diamond mining industry has attempted to highlight the diversity of the junior mining sector and the challenges of the 'one size fits' all approach to minerals policy by regulators.

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Resource Estimation and Valuation of Alluvial Diamond Deposits …

Low Grades. The grade of a diamond deposit is the estimated number of carats contained in one hundred tonnes (cpht) or hundred cubic metres (ct/100 m 3) of gravel.Some alluvial deposits have grades measured in carats per cubic metre/tonne and marine deposits along the South African/Namibian West Coast are often measured in …

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A Review of the Geology of Global Diamond Mines and …

The subsequent identification of diamonds in South Africa led to a third global source of diamonds. ... (1995, 1996) who noted the inception of alluvial mining in Zaire (now the Democratic Republic of Congo, DRC) in 1903 and the Mbuji Mayi area in 1918, and in Angola in 1912. The Colossus kimberlite was discovered in Zimbabwe in 1907, ...

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Where diamonds are found and mined in South Africa

Natural diamonds were formed some 3.3 billion years ago in conditions of intense heat and pressure 150km below the earth's surface. Alluvial diamonds were the first diamonds to be discovered in South Africa.

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Diamond Processing

CDE offers a range of wet processing equipment which can be employed at various stages of the diamond mining process. Learn more. +44 28 8676 7900. ... We supply a range of equipment that can be applied in diamond mining operations and these plants will typically include the following processing phases: ... Output Alluvial Mining of Precious ...

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Rockwell Diamonds Agrees to $28.5 Million Deal to

Mining company Rockwell Diamonds has agreed to acquire certain alluvial diamond properties and associated plant and equipment from Bondeo 140 CC for $28.5 million, assisting Rockwell in expanding its operations in South Africa. "We are delighted to have concluded this agreement as it represents an exciting growth platform for …

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Basic principles of alluvial diamond exploration

The principles are illustrated, where possible, by reference to a case history of exploration for alluvial diamonds in the south-western Transvaal, South Africa. ... per annum have been discovered since 1950. Exploration strategy, world production, sizes of pipes, quality and value of diamonds, mining, milling and economics of diamond …

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Marine & River Diamond Mining Equipment

Marine & River Diamond Mining Equipment Manufacturers - Wes See Konstruksie, South Africa ... About Us: Equipment: Services: Boats: Contact Us : 50 years of combined experience in both the mining of Alluvial diamonds and the manufacturing of mining equipment allows us, Wes See, to give you personalised service and custom designed …

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Home | Lower Orange River Diamonds (LOR)

The Lower Orange River Diamonds operations are situated in a remote desert wilderness area along the banks of the South African side of the Lower Orange River, which forms the border between South Africa and Namibia. This Mining License covers a total combined area of 41,334ha.

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The 18 Great Places To Find Diamond in California In 2024

The diamonds at Webber Hill are alluvial, meaning they were carried downstream and deposited by the river over thousands of years. What makes Webber …

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