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Neither gold nor diamonds, the most expensive metal is worth 27 million euros a gram
Californium, a metal first synthesized in 1950, is the world's most expensive material due to its extreme rarity and its applications in medicine, industry and security. The metal, first ...
Vanguard1d
5 most expensive metals and countries they are mined
Among the four major precious metals—gold, silver, platinum, and palladium—it is the most expensive and rarer than platinum.
Robb Report on MSN10d
This 1943 Patek Philippe Is Poised to Become the Most Expensive Watch in the World
A stainless-steel Patek Phililppe Ref. 1518 could become the most expensive watch ever sold at the upcoming Monaco Legend ...