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  2. Coinage metals - Wikipedia

    en.wikipedia.org/wiki/Coinage_metals

    Many coins throughout history were made of gold, silver and copper. Silver: Gold: Iron: Numerous Chinese cash coins were made of iron, with the first being issued by the Han dynasty in 118 BCE. From 1942 through 1952, some of the Swedish krona coins – such as the 1, 2 and 5 öre – were made of iron. Lead: Most commonly seen in southeast ...

  3. Group 11 element - Wikipedia

    en.wikipedia.org/wiki/Group_11_element

    Inflation has caused the face value of coins to fall below the hard currency value of the historically used metals. This had led to most modern coins being made of base metals – copper nickel (around 80:20, silver in color) is popular as are nickel-brass (copper (75), nickel (5) and zinc (20), gold in color), manganese-brass (copper, zinc ...

  4. Precious metal - Wikipedia

    en.wikipedia.org/wiki/Precious_metal

    One of the largest bullion coins in the world was the 10,000-dollar Australian Gold Nugget coin minted in Australia, which consists of a full kilogram of 99.9% pure gold. In 2012, the Perth Mint produced a 1-tonne coin of 99.99% pure gold with a face value of $ 1 million AUD, making it the largest minted coin in the world with a gold value of ...

  5. Bullion - Wikipedia

    en.wikipedia.org/wiki/Bullion

    Bullion is non-ferrous metal that has been refined to a high standard of elemental purity. The term is ordinarily applied to bulk metal used in the production of coins and especially to precious metals such as gold and silver. It comes from the Anglo-Norman term for a melting-house where metal was refined, and earlier from French bouillon ...

  6. Coining (mint) - Wikipedia

    en.wikipedia.org/wiki/Coining_(mint)

    Striking a coin refers to pressing an image into the blank metal disc, or planchet, and is a term descended from the days when the dies were struck with hammers to deform the metal into the image of the dies. Modern dies made out of hardened steel are capable of producing many hundreds of thousands of coins before they are retired and defaced.

  7. 9 Rare American Coins That Are Worth a Lot of Money - AOL

    www.aol.com/finance/9-rare-american-coins-worth...

    The Standing Liberty quarter remains “among the most collectible old coins ever made” by the U.S. Mint, according to Gainesville Coins. The coin’s design made its debut in 1916 but was ...

  8. Ancient Chinese coinage - Wikipedia

    en.wikipedia.org/wiki/Ancient_Chinese_coinage

    Chinese coins were usually made from mixtures of metals such copper, tin and lead, from bronze, brass or iron: precious metals like gold and silver were uncommonly used. The ratios and purity of the coin metals varied considerably. Most Chinese coins were produced with a square hole in the middle.

  9. 'Pawn Stars:' Why a rare coin worth six figures sold for much ...

    www.aol.com/entertainment/2014-12-12-pawn-stars...

    On History Channel's hit show "Pawn Stars," a man came in to sell a 1907 Saint-Gaudens double eagle $20 gold coin. The coins are extremely rare, and some of them have sold for more than $1 million ...