What is the Most Expensive Material in the World? » Explorersweb

No, it's not a Moon or Mars rock, a meteorite, a white diamond, or a rare radioactive element. Can you guess what it is?

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10 Most Expensive Materials in the World

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The 15 Most Expensive Materials in the World - Hello Travel Buzz

The 10 Most Expensive Materials in the World, by Ravi Sharma

World's most expensive material costs $62.5T per gram

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So Why Do We Keep Reporting on 8,000'ers, Anyway? » Explorersweb

What is the Most Expensive Material in the World? » Explorersweb

What is the Most Expensive Material in the World? » Explorersweb