11 Of The Most Dangerous And Expensive Mining Expeditions In The World | So Expensive
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“Business Insider”
In Uruguay, Renato is setting off an explosive to reveal an ancient, glittery stone — amethyst. While in Italy, Enrico is cutting slabs off of one of the most expensive marbles in the world — Calacatta.
Stones, salts, crystals, and other natural resources are worth millions of dollars. But…
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