The Steenkampskraal Mine may be about to become piping hot mining property. It’s old, doesn’t look like much and is located well out the way in an arid part of western South Africa in the Western Cape.
But the Steenkampskraal Mine may be about to become piping hot mining property thanks to some of the world’s highest-grade deposits of rare earth metals.
“Steenkampskraal will become a very important source of rare earths for the global industry,” said Trevor Blench, chairman of Steenkampskraal Holdings Limited, during a recent tour.
The mine, located about 350 kilometres north of Cape Town, used to produce thorium, a component of nuclear fuel, in the 1950s and 60s.
But now it’s been found to also have monazite ore which contains extremely high-grade rare earth minerals including neodymium and praseodymium — elements vital to cutting-edge industries.
Manufacturing uses range from tinted welding goggles to industrial magnets, strong alloys for aircraft engines, military hardware, hybrid cars, consumer electronic devices, medical equipment and even the flints in cigarette lighters.
Nothing like it
China produces the largest share of so-called “tech minerals”, with a domestic output of 120,000 tonnes in 2018.
That’s vastly more than the United States, which relies on China for about 80 percent of its rare-earth imports.
But now Beijing has threatened to cut off the supply as trade frictions mount, prompting US President Donald Trump on July 22 to give the Pentagon an executive order to find other sources of the crucial elements.
Rare earth elements are a group of 17 minerals unique for their magnetic, catalytic and electrochemical properties.
For the first time since 1985, China last year became a net importer of some rare earths for its industrial needs, while the government cracked down on illegal exploration and production.
Global sales of electric cars, which need the minerals, jumped by 68 percent in 2018 to 5.12 million, with China selling over a million vehicles, according to the International Energy Agency.
“China may, as a result of its own requirements, just export less and less to the rest of the world,” Blench said.
Steenkampskraal Mine could just be the answer to growing demand, he suggested.
‘Abundance of rocks’
“About 14 percent of this rock is rare earths. That is an extraordinarily high grade and we don’t know anything like it on the planet,” Blench said, holding a small but heavy reddish brown rock.
Worldwide, many mines have around six percent or less rare earths in their ore.
No mines for rare earth elements currently operate in South Africa, but the government confirms the presence of yet-to-be tapped tech minerals.
“South Africa is certainly on par with any other country that would lay a claim to being able to supply rare earths elements to meet this increasing demand,” said mineralogist Deshenthree Chetty at Mintek, a government mineral and metallurgy research department.
She added that it would be “a great deal for our country to be able to supply, and we are in a position to do so, as long as those markets are favourable.”
“We have an abundance of rocks in which rare earth elements are found,” Mosa Mabuza, CEO of the Council for GeoScience, which surveys mineral deposits, told AFP.
Steenkampskraal has secured all the licences required to start mining. It plans an initial production of 2,700 tonnes a year once funding of $50 million (45 million euros) has been secured, with further plans to expand.
But the road to global success risks being rocky for the South Africans, cautioned Diego Oliva-Velez, a commodities analyst with Fitch Solutions in London.
The rare earth sector in South Africa is largely undeveloped, and could easily fall behind the US, Australia, India, Russia and Vietnam which all have “significantly larger proven reserves of rare earths”, he said.
Steenkampskraal’s reserves are also mostly so-called “light rare earths”, which are comparatively abundant.
“Steenkampskraal will have to compete with many other producers in this area globally,” said Oliva-Velez.
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