Siberia’s Mir mine is a diamond pit more than 525 meters deep and 1,200 meters across
The Soviet pit in Mirny once yielded 10 million carats a year, needed jet engines to thaw the ground, and produced a 468-carat diamond as recently as 2025.
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The Soviet pit in Mirny once yielded 10 million carats a year, needed jet engines to thaw the ground, and produced a 468-carat diamond as recently as 2025.
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