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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

    Group 11 is also known as the coinage metals, due to their usage in minting coins [2] —while the rise in metal prices mean that silver and gold are no longer used for circulating currency, remaining in use for bullion, copper remains a common metal in coins to date, either in the form of copper clad coinage or as part of the cupronickel alloy.

  4. Cast coinage - Wikipedia

    en.wikipedia.org/wiki/Cast_coinage

    Cast coinage refers to coins made by pouring melted metal into a mold, i.e. casting. It has been used for regular coins, particularly in East Asia, but also other areas on a smaller scale (e.g. the ancient Mediterranean world). The method differs from the current mode of coin production, which is done by striking coin blanks that have been cut ...

  5. 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.

  6. Noble metal - Wikipedia

    en.wikipedia.org/wiki/Noble_metal

    "Noble Metals. Gold, Platinum, Silver, and a few rare metals. The members of this class have little or no tendency to unite with oxygen in the free state, and when placed in water at a red heat do not alter its composition. The oxides are readily decomposed by heat in consequence of the feeble affinity between the metal and oxygen." [29]

  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. 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 ...

  9. 5 common mistakes new gold investors make

    www.aol.com/5-common-mistakes-gold-investors...

    Gold shined in 2024, outperforming many other investment assets this year. Gold's trajectory can be traced back to late 2023, when its price surged to a record high of $2,135.39 per ounce due to ...