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  2. Metals of antiquity - Wikipedia

    en.wikipedia.org/wiki/Metals_of_antiquity

    The metals of antiquity are the seven metals which humans had identified and found use for in prehistoric times in Africa, Europe and throughout Asia: [1] gold, silver, copper, tin, lead, iron, and mercury. Zinc, arsenic, and antimony were also known during antiquity, but they were not recognised as distinct metals until later.

  3. Metal - Wikipedia

    en.wikipedia.org/wiki/Metal

    The term noble metal (also for elements) is commonly used in opposition to base metal. Noble metals are less reactive, resistant to corrosion or oxidation, [49] unlike most base metals. They tend to be precious metals, often due to perceived rarity. Examples include gold, platinum, silver, rhodium, iridium, and palladium.

  4. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    Other precious metals include the platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum, of which platinum is the most widely traded. [1] The demand for precious metals is driven not only by their practical use but also by their role as investments and a store of value .

  5. 15 Biggest Copper Companies in the World - AOL

    www.aol.com/news/15-biggest-copper-companies...

    Copper is the third most used metal in the world with Chile as its biggest producer and China as its biggest importer. Copper price […] To skip the industry analysis, you can go directly to the ...

  6. Noble metal - Wikipedia

    en.wikipedia.org/wiki/Noble_metal

    While lists of noble metals can differ, they tend to cluster around gold and the six platinum group metals: ruthenium, rhodium, palladium, osmium, iridium, and platinum. In addition to this term's function as a compound noun, there are circumstances where noble is used as an adjective for the noun metal.

  7. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    The coinage metals comprise those metallic chemical elements and alloys which have been used to mint coins. Historically, most coinage metals are from the three nonradioactive members of group 11 of the periodic table : copper , silver and gold .