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How deep is the Big Hole in Kimberley?

How deep is the Big Hole in Kimberley?

The largest, the Kimberley Mine, or “Big Hole,” covered 170,000 square meters, reached a depth of 240 meters, and yielded three tons of diamonds.

What caused the Big Hole in Kimberley?

When word spread that diamonds had been discovered, thousands of prospectors, armed with nothing more than picks, shovels and hope, descended on Kimberley and created the largest hand-dug excavation in the world.

Are there still diamonds in the Big Hole?

Kimberley, South Africa, is home to the world’s largest diamond mine, also known as the “Big Hole.” Dug by humans and so large it is visible from space, the pit has yielded some of the world’s largest diamonds and made the De Beers name famous worldwide.

Do they still mine diamonds in Kimberley?

Kimberley Mine (now called the Big Hole; 0.9 mile [1.5 km] in circumference), long the richest diamond-producing mine in the world, was closed in 1914, but several other mines remain productive, and diamond mining and cutting remain prominent industries.

What is inside a big hole?

From mid-July 1871 to 1914 up to 50,000 miners dug the hole with picks and shovels, yielding 2,720 kilograms (6,000 lb; 13,600,000 carats) of diamonds. The Big Hole has a surface of 17 hectares (42 acres) and is 463 metres (1,519 ft) wide.

Do they still mine in Kimberley?

The Kimberley Underground mines were in operation more than a century ago and have a history of producing large diamonds. Kimberley Underground is currently 74% owned by its operator Petra Diamonds and 26% by Sedibeng Mining. The current mine plan for Kimberley Underground is for ten years.

Why did the Kimberley Mine close?

On 4 August 1914, work was stopped at the Kimberley mine after 43 years of operation. The mine became uneconomical to operate as it reached a depth of 1 083 m without yielding production. This event ended a pioneering episode in South African engineering history.

What is inside the Kimberley Hole?

The Kimberley Mine or Tim Kuilmine (Afrikaans: Groot Gat) is an open-pit and underground mine in Kimberley, South Africa, and claimed to be the deepest hole excavated by hand, although this claim is disputed….Big Hole.

Location
Products Diamonds
Type Open-pit, underground
History
Opened 1871

Who owns the Kimberley diamond mine?

Company News De Beers Consolidated Mines (DBCM) announces that it has completed the sale of Kimberley Mines (all assets, including the tailings mineral resource) to Ekapa Minerals (Pty) Limited – an investor consortium comprising Ekapa Mining (Pty) (50.1%) and Petra Diamonds Limited (49.9%).

What is inside the Big Hole in Kimberley?

By the time mining ended on 14 August 1914, the mine had yielded 2722 kilograms of diamonds, extracted from 22,5 million tons of excavated earth. ~ Reference: De Beers. What makes Kimberley’s Big Hole that much more interesting is that it is an entirely man-made structure; the largest hand-dug excavation in the world.