Scientists say that under the peculiar conditions present deep in the Earth's mantle, iron carbonates can play a role in forming diamonds.
Africa Mining News
Stock closed 12.2% higher at 64.80p, after it had fallen on Tuesday to its lowest since late 2015.
Vehicles were carrying fuel to the company's Inata gold mine.
“If we don’t do anything we will continually be disappointed and the industry will slowly dig itself into a hole of irrelevance and oblivion.”
London-based Graff Diamonds paid nearly $47,777 per carat
The Sierra Leone-focused miner has found gold of almost "bonanza grade" at the Ferensola gold project in the Sula Mountains of Sierra Leone.
The Canadian miner said measure was taken after violent groups blocked main road to the mine, which has prevented essentials from reaching the operation.
New laws and a crackdown on mining firms in Tanzania has slowed fresh investment in what has long been seen as one of Africa's brightest mining prospects
Stellar Diamonds plc, the London listed diamond development company focused on West Africa, announces that it has paid US$150,240 to the Sierra Leone Environmental Agency for the Tongo Environmental Licence.
Public prosecutor for the state of Minas Gerais, where the iron ore mine is located, ordered the company to reschedule two public meetings as it had failed to inform of it to all communities potentially affected by the planned expansion.
Gold bars are not impacted by the export ban on gold and copper concentrate imposed by the Tanzanian government in March.
KPMG cleared out its South African leadership last Friday after it found that work it did for firms owned by the Gupta family, businessmen friends of President Jacob Zuma, "fell considerably short" of its standards.
The National Union of Mineworkers said on Thursday its members would go on an indefinite strike at the mine over wages, benefits.
The Ity mine, in Côte d’Ivoire, has produced more than 1.2 million ounces of gold in its over 20 years of operations.
He intends to buy as much as 1.5 billion pounds (about$2 billion) worth of additional Anglo American shares.
President John Magufuli also directed the central bank to buy the precious stone to boost reserves — the latest twist in a spat with mining firms over alleged tax evasion.
Zama zamas earn a pittance for work that puts their lives at risk on a daily basis
The operation would be second biggest diamond mine in Sierra Leone.
Angola LNG said the deal was another step toward building its sales book with the most important players in the LNG market.
Shares in the diamond miner fell for a second consecutive day after it warned that two of its South african mines had been affected by strikes.
Finding follows the recovery of five other diamonds of over 100 carats so far this year at the company's flagship Letšeng mine, in Lesotho.
New controls aims at holding the company's partners, including Glencore, China Molybdenum and Ivanhoe, accountable in copper and cobalt projects
The miner warned further reductions could be in store at those operations, which employ 31,000 people.
The Africa-focused diamond miner said that would likely happen unless it solves its issues with the government of Tanzania.
Draft bill gives government first option to buy unusually large diamonds found in the country's mines, such as the world's second-biggest 1,109 carat diamond discovered by Lucara two years ago.