mine

How Do They Mine Diamonds?

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Narrator: IN THE WORLD OF DIAMOND MINING, EVERYTHING STARTS WITH A BANG.

AT THE DIAVIK MINE,

THEY BLAST OUT THOUSANDS OF TONS OF ROCK PER DAY,

SEARCHING FOR DIAMONDS

WHICH ORIGINALLY FORMED 93 MILES BELOW GROUND.

THE DEEPEST HOLE WE'VE EVER DUG

ISN'T EVEN A TENTH AS DEEP.

SO HOW DID THEY GET TO THE SURFACE?

VOLCANIC ACTIVITY CARRIED THEM UP

THROUGH THE PLANET'S CRUST.

Narrator: THEY'RE EXCAVATING 2.5 BILLION YEAR OLD ROCK

TO REACH THE VOLCANIC DEPOSITS CALLED KIMBERLITE PIPES

WHERE THE DIAMONDS LIE.

Man: KIMBERLITE PIPE IS JUST A ROUND PIPE OF LAVA FLOW

THAT COMES UP MILLIONS AND MILLIONS OF YEARS AGO THAT

WE'RE ACTUALLY DRILLING IN AN OLD VOLCANO.

Narrator: VOLCANIC ORE IS LOADED ONTO GIANT 240-TON TRUCKS

THAT CREEP UP THE SPIRALING RIM

OF THE CRATER TO THE PROCESSING PLANT.

IT MAY LOOK LIKE THEY'RE CARRYING

JUST A HEAP OF BOULDERS, BUT HIDDEN IN EACH LOAD,