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The mirny diamond mine in russia is the world’s biggest hole - it’s 525 metres deep and 1.25km wide.The suction above the hole resulted in several helicopter crashes, so all flight above the hole is prohibited now.

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Visit the diamond mine in Murfreesboro, Arkansas

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Crater of Diamonds State Park, Murfreesboro, Arkansas (Pike County) is the only diamond mine in the world where visitors can dig for diamonds & keep what they find. An average of 2 diamonds a day are found, along with 40 other gemstones & minerals including amethyst, jasper, peridot, garnet, & quartz. The Strawn diamond (bottom) found in 1990 weighed 3.09 carats, 1.09 carats when cut - it's rated a perfect 0/0/0 & considered a one-in-a-billion stone. Valued at $34k, it's on display at the…

Loihi Seamount: The New Volcanic Island in the Hawaiian Chain

Arkansas Diamond Mine at Crater of Diamonds State Park.

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Diavik Diamond Mine

Diavik Diamond Mine – Tulita, Canada

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Former Soviet Mines Are Like Artificially Constructed Pits Of Hell

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Go searching for diamonds at Crater of Diamonds State Park in Arkansas. You get to keep what you find!

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Crater of Diamonds State Park in Arkansas This is what you need to get started on your hunt for diamonds, plus a lot of patience, sunscreen, and a good imagination - all my rocks looked like diamonds - but turned out to be just rocks!

US Diamond Mines - Diamond Mining in the United States