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About | Lower Orange River Diamonds (LOR)

Company history and overview. The Lower Orange River Diamonds operations are in a remote desert wilderness area along the banks of the South African side of the Lower Orange River. This river acts as the border between South Africa and Namibia. This mining license encompasses a total combined area of 41,334 hectares.

Gold and GemStone Mining Inc. secures 50 additional acres …

old and GemStone Mining Inc. (OTCBB: GGSM), an alluvial gold and diamond exploration and development stage mining company focused on Sierra Leone, West Africa has today announced that its local ...

Pierre deJager

Consulting Geologist at Small to medium alluvial diamond mining companie · Experience: Small to medium alluvial diamond mining companies · Education: University of Port Elizabeth · Location: South Africa · 109 connections on LinkedIn. View Pierre deJager's profile on LinkedIn, a professional community of 1 billion members.

Lucapa recovers 195-carat diamond from Lulo mine

Lucapa Diamond (ASX: LOM) announced Tuesday that the company has recovered a 195-carat Type IIa diamond from its Lulo mine in Angola. The diamond is the sixth largest and the 44th +100 carat ...

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

Shares in Lucapa Diamond (ASX: LOM) jumped almost 5% on Monday after the Australian miner announced that resources at its Lulo mine in Angola rose 48% last year. The company said the volume of ...

Lucapa finds Angola mine's second-largest diamond

The find of the 235-carat type IIa diamond at Lulo comes barely a week after Lucapa dug up a 208-carat rock at the same mine.

The Future of Real Diamond Mining and Its Impact on Diamond …

The commitment to innovation extends to the marketing and consumer engagement domains, where mining companies seek to enhance user experiences, bridging their operations with the end-users desires through novel strategies. This benefits industrial alluvial mining and other sectors within the industry and adds a luster to the …

SOUTH AFRICA'S ALLUVIAL DIAMOND DEPOSITS

Very limited modern and reliable published information on Alluvial Diamond Deposits – very low grade, great price variability.

DIAMOND MINING AND THE ENVIRONMENT FACT …

The formal diamond mining industry constantly strives to strike a balance between its economic, social and environmental responsibilities, while making a positive and lasting contribution to the environment and communities in which it operates. However there is also a large amount of informal alluvial diamond digging – which is not currently regulated …

Alluvial Diamond Mining in Marange

Alluvial diamond mining in Marange started at the backdrop of a violent and brutal military operation that elbowed out thousands of artisanal miners who had besieged the diamond fields in 2006 following the invalidation of Africa Consolidated Resources (ACR) mining claims by government. The executive arm of government …

Historical Reading List: Alluvial Diamonds from Namibia

Historical Reading List: Alluvial Diamonds from Namibia. Dr. James Shigley. February 8, 2019. Ancient sedimentary bedrock exposed beneath costal sands by mining operations at the De Beers CDM mine near Orangemund. Diamonds are found along erosion channels cut into this bedrock. A little more than a century ago in May 1908, …

A review of the alluvial diamond industry and the gravels of …

The extremely low concentrations of diamond in most alluvial deposits and the almost random distribution of the diamonds within the gravels, necessitate the taking of large …

ALLUVIAL DIAMOND MINING FACT SHEET

Alluvial diamond deposits are found on the Atlantic coast of South Africa and Namibia, as well as in some riverbeds in Angola, Sierra Leone, Democratic Republic of Congo, …

Rockwell Diamonds sells off Klipdam mine in South Africa

Rockwell Diamonds Inc. (TSX: RDI; JSE: RDI) sold its South African Klipdam mine for about $5.2 million. The company said the deal was signed with a private alluvial diamond miner. Although the bid ...

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 ...

Community Mining Project | Lower Orange River Diamonds

In the midst of a desert wilderness, for about 109 km from the south bank of the Orange river, which forms part of the border between South Africa and Namibia, miner Lower Orange River Diamonds (LOR) has found a solution to illegal mining, a Community Artisanal Mining (CAM) project, which the company is implementing.

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 of 1.23 million carats in …

Stellar Diamonds just found a big rock at its Guinea project

Africa-focused Stellar Diamonds (LON:STEL) unveiled Monday it has unearthed its biggest diamond yet at it majority-owned Baoulé project in Guinea. According to the company, the discovery of the ...

Basic principles of alluvial diamond exploration

The general principles that govern any search for alluvial diamonds, the processes involved in alluvial diamond deposition and the methods and technology used in exploring for and evaluating such deposits are also discussed. The principles are illustrated, where possible, by reference to a case history of exploration for alluvial …

DIAMOND PRODUCING COUNTRIES IN AFRICA FACT …

The Government Diamond Office of Sierra Leone opened in 1959 and managed all diamonds produced under the Alluvial Diamond Mining Scheme. A year later, the Diamond Corporation (Sierra Leone) agreed to provide technical assistance to the Sierra Leone Government in the search for mineral deposits.

The Africa Mining Vision: a manifesto for more inclusive …

Alongside these developments, however, West Africa was rapidly becoming a strategic hub of alluvial diamond production, largely on the back of the efforts of the Consolidated …

Why Zimbabwe's diamond mines need better regulation, not state ownership

Zimbabwe has said it will take over all diamond mining operations in the country. But what is needed to maximise revenues isn't state ownership, but improvements in existing regulatory practices.

Brazilian Diamonds: A Historical and Recent Perspective

Recounts the history, geology, and notable localities of diamond mining in Brazil, and outlines plans for future diamond production.

EXPLOITING RSA'S ALLUVIAL DIAMOND DEPOSITS …

Alluvial diamonds are highly challenging minerals to mine. Very limited modern and reliable published information on Alluvial Diamond Deposits – very low grade, great …

Alluvial Diamond Mining

Alluvial diamond mining is an above ground form of mining which concentrates on gathering diamonds on the surface. This is the most traditional and oldest mining method in the diamond industry, which originated hundreds of years ago in India. This method is widespread even today, mainly in Brazil and Africa.

Diamond Exploration Strategies

Our focus is on diamonds and the team's involvement includes kimberlite, alluvial and marine diamond exploration and mining. We are Africa focused, with experience in West, Central and Southern Africa.

A review of the alluvial diamond industry and the gravels …

The extremely low concentrations of diamond in most alluvial deposits and the almost random distribution of the diamonds within the gravels, necessitate the taking of large samples in order to ...

Imilingo and the future of alluvial diamond mining

Imilingo Mineral Processing has made massive inroads into Africa's alluvial diamond mining sector thanks to its unique dredging and sorting technology.

Marange may not be the world's largest diamond producer

The primary buyers of the rough diamonds have been companies operating in China, India, and South Africa that process and then mix Marange diamonds with diamonds sourced elsewhere, essentially ...

THE DIAMOND DEPOSITS OF KALIMANTAN, BORNEO

The island of Borneo is one of the oldest known -and least reported on -sources of diamonds. Although diamond mining his- torically was concentrated in the western area of what is now Kalimantan, recent activity has focused on the alluvial de- posits in the southeast. A progress report bulk on t11e first sample pit in this area found th4t …