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The Modern Coin Minting Process

The Modern Coin Minting Process
Category: Coin Collecting Guide
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Posted: 12-02-2019 03:15:00 PM

This part of the Resource Center will discourse the fundamentals of getting started in coin collecting, namely, the ins and outs of the modern coin minting process. Here, we will also cover some basic terms that will be integral towards arming yourself with the necessary knowledge to start, or build upon, a coin collection of your own.

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Many collectors, both new and experienced, are intrigued by the coin manufacturing process. This practice is known as minting. Have you ever asked yourself, “How are coins made?”

Coins have been a part of daily life for thousands of years and the process has changed greatly since the first coins were struck. For the purposes of this article, we’ll be focusing on the modern minting process. Now, let’s investigate the process of how coins are made with modern technology.

Some Basic Coin Minting Terms

Before we dive into the process of minting coins itself, it’s helpful to know the basic terms that you will see throughout the discussion.

  1. Die – A die, or die set, is one or more pieces of metal that are designed to shape a material when it is pressed between them.
  2. Blank – A blank is a piece of material that is the same general shape as the finished coin, but its surfaces are smooth.
  3. Mint – A facility specifically made for the production of coins. For a list of both Sovereign and Private Mints, see our "Shop by Mint" feature.

How are coins made?

Traditional Coin Minting ProcessToday, the coin production process begins with the creation of blanks. Blanks for coins look like smooth discs. These blanks are then loaded into presses. The presses used for minting coins today are controlled with computers. A single modern minting press can strike hundreds of coins in the span of just one minute.

To produce coins with features like high relief or ultra-high relief, special dies are made. In addition to using special coin dies in the presses, high relief coins also typically require multiple strikes.

For more information on modern coin minting techniques, read this Info-Vault article.

What Precious Metals are coins made from?

Precious Metals Used in Making CoinsModern coins can be made from a range of metals. Most of the circulating United States coinage that we all use on a daily basis when making or receiving change are made from a mixture of copper and nickel. Some examples include modern U.S. quarters and dimes.

One exception to this is the Lincoln cent. While these coins were once almost entirely made of copper, modern Lincoln cents are primarily made of zinc.

Both bullion and collectible coins are made of precious metals. The American Silver Eagle is made of silver, the American Platinum Eagle is made of platinum, etc. In the case of bullion coins, sometimes small amounts of other metals are added for aesthetic or practical purposes. This can be seen in the American Gold Eagle. Small amounts of silver and copper are included in the alloy. You will see other less common metals used to mint coins from time to time including the less precious copper and rhodium, as well as the growing in popularity, palladium. The United States Mint has even started releasing .9995 pure palladium coins from time to time, including an impressive Reverse Proof Palladium Eagle released in 2019.

Where Are Coins Minted?

Modern Coin Minting Technique As mentioned in the terms defined above, coins are struck at a facility called a Mint. Mints around the world today are capable of striking astronomical amounts of coins daily. While many well-known Mints are owned and operated by national governments, there are many privately owned Mints as well.

Let’s focus on one of the world’s most impressive minting facilities, the United States Mint. In 2018 alone, the United States Mint struck billions of coins for circulation and that doesn’t even include the coins that were struck just for stackers and collectors.

The United States Mint has facilities in Philadelphia, Denver, San Francisco, and West Point. Most of the circulating coins are struck in Denver and Philadelphia. The San Francisco Mint handles a large portion of the proof coins and the West Point Mint strikes many of the Mint’s bullion coins.

What Are Some of the Reasons That Coins Are Minted?

Much of this article has focused on how coins are minted and the most critical technicalities of the subject. However, as collectors we should make it a point to keep in mind why coins are minted.

Pocket ChangeOf course, there’s the practical side of things. There are incredible numbers of coins changing hands on a daily basis. The minting technology that’s in use today is a necessity for making sure there are enough coins for everyone’s transactions. While debit cards and payment apps like Venmo have risen to incredible prominence in the last decade, most people do still carry change in the pockets.

Other than the practical side of things, some coins are minted to honor people, places, events, and organizations. Perhaps the best example of this is the U.S. Mint’s modern commemorative coin program. The modern commemorative program began in 1982 and each coin from it features a significant theme. Often times a portion of the proceeds from such United States Mint commemorative programs go towards the organization being honored.  

There are also custom coins. For the most part, these are struck by Private Mints. The designs on custom coins can depict almost anything.

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