Diamond Discovery and Formation

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Questions and Answers

What technology was utilized to discover the 2,492-carat diamond in Botswana?

  • X-ray technology (correct)
  • Laser scanning technology
  • Magnetic resonance imaging
  • Ultrasound technology

Which diamond holds the title of the largest diamond ever found?

  • Karowe diamond
  • Cullinan diamond (correct)
  • Hope diamond
  • Sewelô diamond

What is the carat weight of the second-largest diamond ever found, recently discovered in Botswana?

  • 3,106 carats
  • 1,758 carats
  • 2,492 carats (correct)
  • 1,500 carats

Who is the president and CEO of Lucara Diamond who announced the discovery?

<p>William Lamb (B)</p> Signup and view all the answers

What is significant about the Karowe mine where the diamond was found?

<p>It is known for producing exceptionally large diamonds (A)</p> Signup and view all the answers

What was the purpose of the Cullinan I in the British Crown Jewels?

<p>It was added to the Sovereign's Sceptre with Cross for coronations. (A)</p> Signup and view all the answers

At what depth do diamonds typically form within the Earth?

<p>At depths of over 93 miles (150 km) (B)</p> Signup and view all the answers

What is the approximate carat weight of the Cullinan II gemstone?

<p>317 carats (D)</p> Signup and view all the answers

Why might experts take several months to determine the value of the Cullinan diamond?

<p>Large diamonds require detailed valuation processes. (C)</p> Signup and view all the answers

What temperature conditions are necessary for diamond formation?

<p>Temperatures exceeding 2,000°F (1,093°C) (D)</p> Signup and view all the answers

Flashcards

Cullinan Diamond Size

Large enough to fit an adult's palm.

Cullinan Diamond Value

Expected to be worth tens of millions of dollars.

Cullinan Diamond Division

Divided into 9 large and nearly 100 smaller gems.

Diamond Formation Process

Formed by carbon under intense pressure and heat deep underground.

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Diamond Age

Most natural diamonds are a billion years or older, some even billions of years older.

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Largest diamond in Botswana

The 2,492-carat diamond found in the Karowe mine.

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Second-largest diamond

The 2,492-carat diamond, discovered after the 3,106-carat Cullinan diamond.

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Karowe mine location

The mine in Botswana where the large diamond was found.

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X-ray technology in mining

Used to locate large diamonds in the Karowe mine.

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Study Notes

Discovery of a Large Diamond

  • A 2,492-carat diamond discovered in Botswana on August 22, 2024, is the world's second-largest diamond.
  • The gem is exceptionally large and was found in the Karowe mine.
  • The mine is known for its exceptionally large diamonds, including the 1,758-carat Sewelō diamond.
  • The diamond was discovered using X-ray technology.
  • The previous largest diamond, the 3,106-carat Cullinan, was discovered in South Africa in 1905.
  • The newly discovered diamond is expected to fetch tens of millions of dollars.

Diamond Formation

  • Diamonds form deep underground, under high pressure.
  • This process occurs at depths of over 93 miles (150 km).
  • Temperatures exceed 2,000°F (1,093°C).
  • Diamonds are carried closer to Earth's surface by volcanic eruptions.
  • Scientists believe most natural diamonds are at least a billion years old.

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