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  2. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    This is a list of prices of chemical elements. Listed here are mainly average market prices for bulk trade of commodities. ... the most expensive non-synthetic ...

  3. Rare-earth element - Wikipedia

    en.wikipedia.org/wiki/Rare-earth_element

    The rare-earth elements (REE), also called the rare-earth metals or rare earths, and sometimes the lanthanides or lanthanoids (although scandium and yttrium, which do not belong to this series, are usually included as rare earths), [1] are a set of 17 nearly indistinguishable lustrous silvery-white soft heavy metals. Compounds containing rare ...

  4. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    The status of a "precious" metal can also be determined by high demand or market value. Precious metals in bulk form are known as bullion and are traded on commodity markets. Bullion metals may be cast into ingots or minted into coins. The defining attribute of bullion is that it is valued by its mass and purity rather than by a face value as ...

  5. 15 of the rarest items in the world - AOL

    www.aol.com/news/2017-08-01-15-of-the-rarest...

    In February 2007, the world's rarest baseball card sold at auction for $2.3 million. If you think that's totally wild, consider the world's rarest bible, which could net you $25 to $35 million.

  6. 15 of the rarest items in the world - AOL

    www.aol.com/news/article-slideshow-762024.html

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  7. Abundance of the chemical elements - Wikipedia

    en.wikipedia.org/wiki/Abundance_of_the_chemical...

    The abundance of the chemical elements is a measure of the occurrences of the chemical elements relative to all other elements in a given environment. Abundance is measured in one of three ways: by mass fraction (in commercial contexts often called weight fraction), by mole fraction (fraction of atoms by numerical count, or sometimes fraction of molecules in gases), or by volume fraction.

  8. 10 of the Most Expensive Items Ever Sold on eBay

    www.aol.com/10-most-expensive-items-ever...

    It’s very bizarre to live in a world where you can buy U.S. cities on the same website that you can buy a bunch of '90s Xena tapes. Related: The Most Expensive Items at Sam's Club Cheapism ...

  9. Lists of most expensive items by category - Wikipedia

    en.wikipedia.org/wiki/Lists_of_most_expensive...

    List of most expensive films; List of most expensive music videos; List of most expensive non-fungible tokens; List of most expensive photographs; List of most expensive albums; List of most valuable records; List of most expensive music deals; List of most expensive television series; List of most expensive video games to develop