Coin Metal

Justin Veasey

Percentages of material in coin metal

Coin Metal is made of 95% copper and 5% zinc.



www.usmint.gov/about_the_mint/fun_facts/?action...

How Coin Metal was discovered

The first coins were developed independently in Iron Age Anatolia and Archaic Greece, India and China around 600–700 BCE. Coins spread rapidly in the 6th and 5th centuries BCE, throughout Greece and Persia, and further to the Balkans.

https://en.wikipedia.org/wiki/Coin

How Coin Metal is manufactured

There is a four step process used to make coins. The blanks are heated in an annealing furnace to soften them. Then they are run through a washer and dryer. The blanks are heated in an annealing furnace to soften them. Then they are run through a washer and dryer. Next, the good blanks go through an upsetting mill. This raises a rim around their edges. Finally, the blanks go to the coining press. Here, they are stamped with the designs and inscriptions which make them genuine United States coins.

http://www.usmint.gov/circulating_coins/?action=coins

How much does it cost to make a penny

Three physical properties of a penny

1. A penny is round in shape

2. A new penny is shiny and bright.

3. The color of a penny is a metallic copper.

http://www.answers.com/Q/What_physical_properties_describes_a_penny

Three chemical properties of a penny

1. A penny has the ability to rust

2. Copper oxides when it is exposed to oxygen

3. Copper also tarnishes when exposed to certain sulfides.

https://blog.udemy.com/chemical-properties-of-copper/

What coin metal is used for

Coin metal is not only used for making regular coins, but also collectible coins and bullion coins.

https://en.wikipedia.org/wiki/Coinage_metals

Interesting Fact about coin metal

Age, rarity, condition, and precious metal all affect how much a collectible coin is worth.

http://www.usmint.gov/kids/campcoin/collectorsworkshop/tenfacts.cfm#09

Making coins